1. BOTH, EITHER, NEITHER, NONE

2. BOTH: used for two things, people, …- affirmative sentences and plural verb.
Mary and Ann are both cousins.
Both of them are engineers.
Both (of the) chairs are taken.

3. BOTH …AND
BOTH … AND is used when something is true for two people, two things…
Both my sister and my brother are doctors.

4. NEITHER OF: used for two people, two things, … Used in affirmative sentences. Sing/Pl verb
Mary and Ann want to get a dog. Neither of them has/have had a pet before.

5. NEITHER…NOR: used when something is not true for two people or things, … The verb is usually singular.
Neither Mary nor Jean likes tennis.

6. EITHER…OR: used when something is true for one of the two people, things, …
Either she was too too busy or she didn’t want to come. You can have either coffee or tea; choose which one you prefer.

7. NONE is used for more than two people, things … It is used in affirmative sentences and gives a negative meaning. It takes a singular or a plural verb. It expresses the idea of “not a single one.”
All my friends love hip hop. None of them like/likes pop. None of my friends called me on my birthday.

8. Translate Ninguno de mis parientes vive en Barcelona.
Has conocido a mis hermanos? Si, he conocido a los dos, Juan y Pablo.
Ni a mi hijo ni a mi hija les gusta el rap.
Al final tuve que elegir: o mi trabajo o mi hobby.
Podíamos o volar o ir en tren.

9. None of my relatives live/lives in Barcelona.
Have you ever met my brothers? Yes, I’ve met both, Juan and Pablo.
Neither my son nor my daughter likes rap.
In the end I had to choose: either my job or my hobby.
We could either fly or go by train.

10. Now try these online exercises.