Modal Verbs of Possibility and Deduction

Sometimes we don’t know the facts, but we can make guesses or deductions about what’s true.
In English, we use modal verbs like may, might, could, must, and can’t to do this.
They help us show how sure or unsure we are about something.

Talking About Possibility

When we aren’t sure, but we think something is possible, we use may, might, or could + base form (the base form of the verb, without to).

These modals all mean “maybe”. They show that we’re guessing, not stating a fact.

💭 Examples of Possibility

💬 Sentence💡 Meaning
She may be ill.Maybe/ It’s possible she’s ill.
She might be lost.Maybe/ It’s possible she’s lost.
She could be from another country.Maybe/ It’s possible she’s is from another country.
She might not be here tomorrow.Maybe/ It’s possible she won’t come tomorrow.

🎯 Quick Notes

  • may, might, and could all express the same level of possibility.
  • To make a negative, add not: might not / may not.

Example: He might not come to class today.

  • They’re followed by a base form verb

She might be late. ✖️ She might to be late.

🌦 Think of it like this:

ModalHow sure are you?Example
may / might / could🤔 Maybe yes, maybe noIt might rain later.

They’re your “maybe modals

These modals are perfect when you’re not 100% sure, but something is possible!

Talking About Strong Possibility

Sometimes things look or sound true, even if we aren’t completely certain.
In this case, we use seem + to + verb to show a strong possibility or something that appears or feels true.

Think of it as saying:

“It looks like…” or “It sounds like…”

💭 Examples of Strong Possibility

💬 Sentence💡 Meaning
She seems to be very cold.It looks like she’s cold.
They seem to know each other well.It appears they know each other.
This café seems to be popular.It looks busy — probably true.
He seems to be tired.It looks that way — I’m quite sure.

🧩 Grammar Pattern

seem + to + verb (base form)

She seems to be tired.
It seems to work well.

🌟 Remember

  • “Seem” is stronger than may, might, or could.
  • You use it when something looks or feels true, but you don’t have proof.
  • It’s a polite, soft way to make an observation.

🎯 Compare

ExpressionMeaningExample
may / might / couldpossible, not sureShe might be cold.
seem (to)strong possibilityShe seems to be cold.

Talking About Certainty

When you feel quite certain about something or you have good evidence or a strong reason, use must + verb.

It means you are almost 100% sure something is true.

💭 Examples of Deduction (Strong Certainty)

💬 Sentence💡 Meaning
She must work at McDonald’s.I’m almost sure. She is wearing a uniform.
He must be tired after the trip.I’m almost sure. He traveled all night.
You must know her. I’m sure it’s true. You work in the same office!
That must be our bus.I’m certain — it’s the right number.

🧩 Grammar Pattern

must + verb (base form)

She must be at work.
He must live nearby.

🧠 Remember

  • Use must when you see evidence or know facts that make something very likely.
  • It’s much stronger than may, might, or could.
  • Don’t use it for the past. This form talks about the present.

🎯 Compare

ExpressionMeaningExample
may / might / couldpossibleHe might be tired.
seem (to)strong possibilityHe seems to be tired.
mustsure, strong evidenceHe must be tired.

Talking About Something is Impossible

When you are certain something is impossible, use can’t + verb.
It shows you are sure that your guess or idea is not true.

Think of it like saying:

“That’s impossible!” or “No way!”

💭 Examples of Deduction (Strong Negation)

💬 Sentence💡 Meaning
She can’t be at work I’m sure she isn’t. Her car is still here.
That can’t be his house. Impossible. It’s too big!
He can’t know the answer I’m certain he doesn’t. He didn’t come to class.
You can’t be serious!I don’t believe it. It’s not true.

🧩 Grammar Pattern

can’t + verb (base form)

He can’t be at school — it’s Sunday.
That can’t be real!

🧠 Remember

  • Use can’t when you are sure something isn’t true.
  • It’s the opposite of must.
  • Both talk about deduction in the present — what we think now.

⚖️ Compare

ExpressionMeaningExample
mustsure it’s trueShe must be tired.
(I’m almost sure she is tired)
can’tsure it’s not true.
It’s impossible
She can’t be tired. She just woke up!
(It’s impossible she is tired)

🧠 Grammar Focus

Here’s a complete overview of the modals and expressions we use to talk about possibility, certainty, and impossibility:

ExpressionFormExampleMeaning
maymay + verbShe may be ill.It’s possible.
mightmight + verbShe might be lost.It’s possible.
couldcould + verbHe could be from another country.It’s possible.
seemseem + to + verbShe seems to know the answer.It appears to be true.
mustmust + verbHe must be tired after the long trip.I’m almost certain this is true.
can’tcan’t + verbThat can’t be true!I’m certain this is impossible.

Let’s Practice

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Speaking

Modals of Obligation and Possibility

Obligation

An obligation is something you must do because it is necessary or important.
It can be a rule, a law, or just something that is needed in a situation.

We use have to (or has to) to talk about obligation.

Examples:

  • I have to wear a uniform at school. (It’s a rule.)
  • She has to do her homework before dinner. (It’s necessary.)
  • We don’t have to work on Sunday. (It’s not necessary.)

Structure:

🧠 Structure: Have to / Has to

Sentence TypeStructureExample
AffirmativeSubject + have to / has to + base verbYou have to wear a helmet.
NegativeSubject + don’t / doesn’t have to + base verbHe doesn’t have to go to school today.
QuestionDo / Does + subject + have to + base verb?Do we have to bring our books?

Remember:

  • Use has to with he / she / it.
  • Use have to with I / you / we / they.

Possibility

A possibility means something that you can do.

We use can to talk about possibility, ability, or permission.

Examples:

  • We can go to the beach tomorrow. (It’s possible.)
  • We can visit the museum tomorrow. (It’s possible.)
  • You can’t fly. (It’s impossible)
  • She can’t run that fast. She’s not a superhero! (It’s impossible)

🧠 Structure: Can / Can’t

Sentence TypeStructureExample
AffirmativeSubject + can + base verbShe can travel to New York every month.
NegativeSubject + can’t + base verbPeople can’t fly.
QuestionCan + subject + base verb?Can you buy a new computer?

🧠 Grammar Focus

MeaningVerbStructureExample
Obligation (something you must do)have to / has toSubject + have/has to + verbI have to do my homework.
Possibility / impossibilitycan / can’tSubject + can/can’t + verbWe can play outside. / You can’t live in the moon.

Let’s Practice

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Speaking

Defining Relative Clauses

When we speak or write in English, we often need to give extra information about a person, a place, or a thing.
For example:

  • I met a woman. She works at the museum.
    I met a woman who works at the museum.

We combine the two sentences using a relative clause.

Defining relative clauses help us identify exactly who or what we are talking about — they define the noun. Without this information, the sentence would be unclear.

What Is a Defining Relative Clause?

A defining relative clause gives essential information about a noun.
It tells us which person, thing, or place we mean.

Without relative clauseWith defining relative clause
The man is my teacher.The man who is wearing a blue jacket is my teacher.
I read the book.I read the book that you recommended.
The café is closed.The café where we had breakfast is closed.

🟢 The information in the relative clause is necessary to understand the sentence.
If we remove it, the meaning changes.

Relative Pronouns

We use relative pronouns to connect the main clause and the relative clause.

Relative PronounRefers toExample
whopeopleShe’s the student who won the prize.
thatpeople / thingsThis is the song that I like.
whichthingsThat’s the laptop which I bought yesterday.
whereplacesThis is the park where I go running.
whosepossession/ relationshipI met a man whose car was stolen.
I met a woman whose husband is an actor.
whentimeDo you remember the day when we met?

🟡 Tip: In defining relative clauses, we don’t use commas because the information is essential.

When Can We Omit the Relative Pronoun?

We can leave out “who,” “which,” or “that” when it’s the object of the clause (not the subject).

The book that I read was interesting.The book I read was interesting.
The teacher teaches English is great. → (cannot omit — “who” is the subject)

We can omitWe cannot omit
The film (that I watched) was amazing.The film that won the award was amazing.
The man (who I met) is from Spain.The man who lives next door is from Spain.

Examples in Context

  • She’s the woman who teaches our English class.
  • That’s the shop where I bought my shoes.
  • He’s the actor whose movies are very popular in Asia.
  • This is the place where we met for the first time.

Each clause gives key information that helps the listener understand exactly who or what we’re talking about.

Let’s Practice

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Speaking

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Introduction to Relative Clauses

who, which, that, where

A relative clause gives extra information about a noun (a person, thing, or place).
It tells us which person, which thing, or which place we are talking about.

💬 Example:

That’s the man who teaches English.
→ “who teaches English” tells us which man.

So, instead of two sentences:

That man is my teacher. He teaches English.
You can join them:
That’s the man who teaches English.

Relative Pronouns

Relative PronounUsed forExampleMeaning
whopeople 👩‍🏫She’s the woman who works in the office.→ “who” = the woman
whichthings 🧁This is the cake which I made yesterday.→ “which” = the cake
thatpeople and things 🙋‍♂️📱He’s the man that lives next door.
It’s the phone that I bought.
→ “that” = who / which
whereplaces 🏫That’s the school where I studied.→ “where” = in that place

💡 Note:
In speaking, we often use that instead of who or which — it’s more common and informal.

How to Form a Relative Clause

StepExample
1️⃣ Start with two simple sentences.This is the girl. She lives next door.
2️⃣ Replace the repeated word (she → who).This is the girl who lives next door.

Final sentence:

This is the girl who lives next door.

Examples

💡Remember

  • Don’t use a subject after who, which, or that.
    This is the woman who she works here.
    This is the woman who works here.
  • That can often replace who or which, especially in speech:
    It’s the restaurant that I like best.

Let’s Practice

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Speaking

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Superlatives + present perfect

A superlative adjective is used to show that something is number one: the most, least, biggest, best, etc.

We use superlatives to compare three or more things or experiences.

Form

Type of adjectiveRuleExample
Short adjectives (1 syllable)the + adjective + -estMount Everest is the highest mountain in the world.
Adjectives ending in -yChange yi + -estThat’s the funniest movie I’ve ever seen.
Long adjectives (2+ syllables)the most / the least + adjectiveIt’s the most beautiful beach I’ve ever visited.
Irregular adjectivesDifferent formThat was the best concert I’ve ever been to!

Common Expressions with Superlatives

When we use superlatives, we often add a group to say where or in what situation we are comparing things.

PhraseMeaningExample
in the worldcomparing everything everywhereIt’s the most famous painting in the world.
in my countrycomparing things in your countryThis is the tallest building in my country.
in my classcomparing with your classmatesShe’s the best student in my class.
in my lifecomparing all your experiencesIt’s the most delicious meal I’ve ever had in my life.

💡 These phrases help make your superlatives more specific and natural.

Superlatives + Present Perfect

When we talk about life experiences, we often combine superlatives and present perfect:

👉 It’s the + superlative adjective + noun + I’ve ever + past participle.

ExampleMeaning
It’s the best movie I’ve ever seen.Of all the movies I’ve seen in my life, this one is number one.
It’s the worst hotel I’ve ever stayed in.I’ve never stayed in a worse hotel.
That was the most exciting trip I’ve ever had.It’s number one on my list of experiences.

Grammar Summary

FunctionStructureExample
Superlativethe + adj + -est / the most + adjIt’s the most delicious food in the world.
Present perfect with everhave / has + past participleHave you ever been to Japan?
Combined formIt’s the + superlative + noun + I’ve ever + past participleIt’s the best restaurant I’ve ever tried.

Let’s Practice

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Speaking

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Decisions and Offers

Will / Won’t for Decisions and Offers

We use will and won’t to talk about the future when we:

  • make a decision now (at the moment of speaking)
  • make an offer to help someone
  • make a promise

🧠 We do NOT use “will” for plans we made before. Those use “going to”

Form

PositiveNegativeQuestion
I will call you later.I will not (won’t) call you.Will you call me later?
She will help us.She won’t help us.Will she help us?

👉 Short forms (contractions) are very common in speaking:

I’ll = I will

He’ll = He will

Won’t = will not

✅ Example sentences:

I’ll help you with your bag.

He’ll call you later.

I won’t forget your birthday.

When do we use will?

💡A. To make a quick decision

We use will when we decide something right now, not before.

SituationExample
You see the phone ringing“I’ll answer it!”
You’re in a restaurant, choosing food“I’ll have the pizza.”
Your friend says it’s cold“I’ll close the window.”

🧠 You didn’t plan this before. You decided now.

💡B. To make an offer

We use will when we want to help someone or say we will do something for them.

SituationExample
Your friend needs help“I’ll help you with your homework.”
Someone’s carrying heavy bags“I’ll carry that for you.”
Your classmate forgot a pen“I’ll lend you mine.”

👉 We often use I’ll when we want to be polite or kind.

💡C. To make a promise

We also use will to promise to do (or not do) something.

SituationExample
You want to reassure someone“Don’t worry, I’ll call you.”
You promise to study“I’ll do my homework tonight.”
You promise NOT to forget“I won’t forget your birthday.”

When do we use won’t?

We use won’t to say:

  • you decide not to do something
  • or to refuse to do something
MeaningExample
You decide not to go“I won’t go to the party.”
You refuse to do something“He won’t clean his room.”
You make a negative promise“I won’t tell anyone.”

🧠 Won’t is just the short form of will not.

Will vs. Be Going To

UseExample with willExample with be going to
You decide nowI’ll have the salad.
You decided beforeI’m going to have the salad.
Offer / promiseI’ll help you.

🧠 “Will” = new decision, offer, or promise
🧠 “Be going to” = plan made before

Summary

FunctionExample SentenceMeaning
Quick decisionI’ll open the door.You decide now.
OfferI’ll carry your bag.You offer to help.
PromiseI’ll study tonight.You promise something.
Refusal / decision not toI won’t go out.You decide not to do it.

Let’s Practice

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Speaking

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Read the situation and make a decision

Comparing people, things and places

When we describe the world around us, we often talk about how things are similar or different.
We compare people, places, animals, objects, and even situations, sometimes without thinking about it!

In English, there are several ways to make comparisons.
You might already know the basic forms:

  • Comparatives show differences.
  • Equatives show similarities.
  • Non-equatives show small or polite differences.

Here you can find more details:

But English allows us to go further. We can make stronger comparisons to emphasize big differences, and we can use adverbs to compare actions. For example, how people speak, drive, or work.

Comparing with Adjectives and Adverbs

A. Short adjectives and adverbs

Add -er / -ier to short adjectives or adverbs.
Use than to compare.

TypeFormExample
Short adjectives (1 syllable)adjective + -er + than“Millennials cook more at home, their food is healthier than before.”
Adjectives ending in -ychange -y → -ier“Fresh food is tastier than fast food.”
Short adverbsadverb + -er + than“He runs faster than his brother.”

B. Long adjectives and adverbs

Use more / less + adjective/adverb + than for longer words.

TypeFormExample
Long adjectives (2+ syllables)more + adjective + than“This café is more comfortable than that one.”
Adverbs ending in -lymore + adverb + than“Millennials exercise more regularly than older generations.”
Opposite idealess + adjective/adverb + than“Fresh food is less fattening than fast food.”

Stronger Comparisons

We can make comparisons stronger using words like much, far, or a lot before the adjective.

FormExample
much / far / a lot + comparative“This city is much bigger than my hometown.”
much / far + more + adjective“Electric cars are far more expensive than gas cars.”

🟢 Tip: These words make the difference sound stronger or more surprising.

Irregular Comparatives

Some adjectives and adverbs don’t follow normal rules.

Adjective/AdverbComparativeExample
good / wellbetter“She cooks better than her brother.”
bad / badlyworse“Their diet is worse than before.”

Non-Equatives and Equatives

Non-Equatives
→ Use not as + adjective/adverb + as to show difference (in a polite or softer way).

  • “Millennials are not as hard-working as their parents.”
  • “This café isn’t as quiet as the one downtown.”

Equatives
→ Use as + adjective/adverb + as to show equality.

  • “My town is as peaceful as yours.”
    → Add emphasis with just as or almost as.
  • “This park is just as beautiful as the beach.”
  • “This phone is almost as fast as my laptop.”

Comparing Nouns

We can also compare how many or how much people or things there are.

FormExample
more + nounMore millennials are happy to pay a higher price for eco products.”
fewer + plural noun (countable)Fewer adults own their homes today.”
less + uncountable noun“Millennials earn less money than their parents.”

🧠 Grammar Focus

TypeFormExample
Short adjectivesadjective + -er + than“New York is bigger than Boston.”
Long adjectives/adverbsmore / less + adj/adv + than“Tokyo is more crowded than Seoul.”
Stronger comparisonsmuch / far / a lot + comparative“London is far bigger than Oxford.”
Irregular adjectivesbetter / worse/ further“This café is better than that one.”
Irregular adverbswell/ badly/ fast/ hard“John runs faster than Mike”.
Non-equativesnot as + adj/adv + as“This hotel isn’t as clean as that one.”
Equatives(just/almost) as + adj/adv + as“The park is just as nice as the beach.”
Nounsmore / fewer / less + nounFewer people drive to work now.”

Remember:

  • Use -er or more to show differences.
  • Use as … as to show similarities.
  • Add much / far / a lot to make your comparison stronger.
  • Use not as … as to sound polite.
  • Use more / fewer / less to compare amounts.

Let’s Practice!

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Speaking

Look at the prompts in the cards and make sentences using comparatives.

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Future Plans & Desires

We use be going to, want to, and would like to to talk about plans, intentions and desires for the future.
These expressions help us describe what we have already decided to do, what we want to do, or what we would like to do politely.

Future Plans

We use be going to to talk about things we plan to do or intend to do in the future.
These are decisions we’ve already made.

Structure:
am / is / are + going to + base form (verb)

Examples:

  • I’m going to invite my neighbours for dinner.
  • She’s going to buy a new phone.
  • We’re going to visit our grandparents this weekend.

💡 Remember:
Use the correct form of be:

SubjectBe verb
Iam
You / We / Theyare
He / She / Itis

Example:

I am going to call my friend.
He is going to clean his room.

Desires

A desire is something you really want , something you hope to have or do in the future.
It’s usually possible and realistic.

It comes from your feelings or needs.

ExampleMeaning
I desire peace and quiet.You really want calmness in your life.
She desires to travel the world.It’s something she really wants to do.
They desire success.They want to be successful.

💬 In everyday English, we don’t often say “desire” in conversation. It sounds formal or literary.
Instead, we usually say “want” or “would like”.

👉 Desire = Strong “want” (formal word)

Want to = a strong desire

Use want to + verb to talk about something you really plan to do or feel sure about.
It’s direct and very common in everyday English.

Form:
Subject + want to + base form (verb)

Examples:

  • I want to see my friends this weekend.
  • She wants to travel next summer.
  • We want to buy a new car.

🧠 Meaning: You have a clear plan or strong wish to do something.

Would like to = a polite or softer desire

Use would like to + verb to talk about something you want, but in a more polite or gentle way.
It’s often used when we are being nice, formal, or not completely sure.

Form:
Subject + would like to + base form (verb)
(We often say ’d like instead of would like.)

Examples:

  • I’d like to make a traditional meal.
  • He’d like to visit Paris one day.
  • We’d like to go out this Saturday.

🧠 Meaning: You want to do it, but you say it politely — it sounds friendly and nice.

🗣 Compare:

  • I want to go out tonight. → (simple, direct)
  • I’d like to go out tonight. → (polite and friendly)

🕐 Talking About the Future

Common Time Expressions

⏰ Expression Meaning / When💬 Example Sentence
in an hour60 minutes from nowI’m going to call you in an hour.
📅 this SaturdayThe coming SaturdayWe’re going to a concert this Saturday.
📆 in two months’ timeTwo months from nowShe’s going to start a new job in two months’ time.
🌸 next AprilThe April that’s comingThey’re going to travel to Japan next April.
🕑 at two o’clock tomorrowA specific time tomorrowI’m meeting my teacher at two o’clock tomorrow.
🌞 the day after tomorrowTwo days from todayWe’re going to visit our grandparents the day after tomorrow.
🎓 the year after nextTwo years from nowI’m going to finish university the year after next.
🚀 in 2060A specific year in the futurePeople might live on Mars in 2060.

These words help make your future sentences more natural and specific.

Let’s Practice

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Speaking

Present Perfect + ever/ never

We use the present perfect tense to talk about experiences or actions in the past when we don’t say exactly when they happened.
We care about the result or the experience, not the specific time.

✅ Example: I’ve visited Paris.
(It happened at some time before now, but we don’t say when.)

🧩 How to form the Present Perfect

Subjecthave / haspast participle
I / You / We / Theyhaveseen
He / She / Ithaseaten

📝 Form:

have / has + past participle

Examples:

  • He has watched lots of movies.
  • We have visited many cities.

🚫 Using Never

We use never to say that something has not happened at any time in our life.

Meaning: not ever

🧱 Structure:

Subject + have/has + never + past participle

Examples:

  • He has never watched a football match.
  • I have never seen snow.
  • We have never eaten sushi.

⚠️ Don’t use not and never together:
I haven’t never been to Japan.
I’ve never been to Japan.

❓ Using Ever

We use ever in questions to ask about someone’s life experiences.

Meaning: at any time in your life

🧱 Structure:

Have / Has + subject + ever + past participle + … ?

Examples:

  • Have you ever boiled an egg?
  • Has she ever met a famous person?
  • Have they ever ridden a horse?

🌟 Quick Summary

WordUseExample
everto ask about experiencesHave you ever been to London?
neverto say something hasn’t happenedI’ve never been to London.

Let’s Practice

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Speaking

Practice 2

Complete the questions and discuss the topics with your classmates.

Practice 2

Introduction to Articles

Articles are small but powerful words in English! We use them before nouns to show if we are talking about something general or specific.

Let’s review how and when to use a, an, the, and no article in clear steps.

The Definite Article – the

We use the when the listener knows exactly what we’re talking about — something specific, unique, or already mentioned.

Use “the” for:

  • Something both people know about:
    → I’m going back to the city tomorrow.
  • Famous buildings or landmarks:
    → We visited the Empire State Building.
  • Something unique (only one):
    → People all over the world love music.

🟡 Example:

I saw the movie you told me about.
(It’s clear which movie.)

The Indefinite Articles – a / an

We use a or an when we talk about one thing for the first time, or something not specific.

Use “a / an” for:

  • When you mention something new:
    → I bought a book yesterday.
  • When you mean “one” of something:
    → I had an idea this morning.
  • When you talk generally (not a specific one):
    → Would you like a coffee?

💡 Tip:

  • Use a before consonant sounds → a dog, a student, a car
  • Use an before vowel sounds → an apple, an hour, an umbrella

Zero Article – no article (Ø)

Sometimes, we don’t use a, an, or the at all!
This is called the zero article (Ø).

Use no article for:

  • People or things in general:
    Tourists love visiting New York.
    Dogs are friendly animals.
  • Uncountable nouns:
    → I love music and coffee.

🟡 Example:

I enjoy listening to music.
(We’re not talking about specific music.)

🧩 Comparative Table: Articles in English

TypeFormUseExample
Definite articletheSpecific or known person/thing; unique items; landmarksWe went to the beach. / The moon is bright.
Indefinite articlea / anOne, first mention, not specificI saw a movie. / She has an umbrella.
Zero article (Ø)General ideas, plural or uncountable nounsMusic is relaxing. / People are friendly.

🧠 Grammar Tip

🔹 Use a/an when you mention something for the first time.
🔹 Use the when both people know what you’re talking about.
🔹 Use no article (Ø) for things in general or uncountable nouns.


For more information about articles visit:


Let’s Practice

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Speaking