1.We use all + noun or all of the + a plural or uncountable noun
all = in general
all (of) the = specific
All animals need food.
All of the animals in the safari are dangerous.
2. We use everybody or everything + singular verb
everybody = all people
everything = all things
Everybody is in the classroom.
Everything in this store is so expensive.
3. We use most to say the majority
most = general
most of = specific
Most Canadians speak English.
Some Canadians Speak English and French
Most of the students in this class are from Brazil.
4. We often use all of or most of + object pronoun
All of us are excited for the trip.
Most of them look sad.
5. Use every + singular countable noun to mean “all of a group”. It emphasizes on the complete group.
Every classroom in this school has a projector.
6. We use each to express the idea of ‘one by one’. It emphasizes individuality.
Each employee has a coffee maker in their offices.
More examples:
Time to practice
Teacher Julieta 