1. We use both to refer to two things, people, or animals together.
- We can use both + noun
I like both coffee and tea. (I like coffee and I like tea)
Both those women are my friends. (Those two women are my friends)
- We can use both of + an object pronoun
We both dislike soccer. (subject pronoun + both) or
Both of us dislike soccer. (both + of + object pronoun)
2. We use either …. or … to talk about a choice between two options.
(+) verb + either … or …
Every year I travel either to New York or Paris on Christmas holidays.
3. We use neither … nor … to talk about two things that are not possible.
(-) verb + neither … nor …
Last year I couldn’t go neither to New York nor Paris on New Year due to the pandemics.
4. We can we use either … or …/ neither … or … at the beginning of a sentence. In those cases we can use both singular verbs or plural verbs.
- If both elements that go after either/neither and or/nor are singular, we use a singular verb.
Either my sister or my mom is going to cook dinner for Christmas.
Neither Alicia nor her daughter speaks English.
- If the element that goes after or/nor is plural, we use a plural verb.
Either my manager or my colleagues are going to help me with the project.
Neither the teacher nor her students are going to go to the school party.