We use some and any to talk about indefinite numbers or amounts of things. We can use them with nouns or as pronouns.
Some is used in affirmative sentences: We need to buy some milk.
Any is used questions and negative sentences: I don’t have any cash, do you have any?
* Sometimes any can also be used in affirmative sentences: I really appreciate any help you can give me.
* It’s also right to use some in questions sometimes: Can I have some sugar?
Somebody, anybody, nobody, everybody: are used as singular nouns to refer to people.
I saw somebody at the door. (1 person)
There’s nobody here. (0 people)
Everybody knows that. (all people)
Has anybody seen my wallet? (question)
Obs: Somebody, anybody, nobody and everybody are THE SAME as someone, anyone, no one and everyone.
In conclusion, we use:
someone – anyone – no one – everyone (for people)
something – anything – nothing – everything (for things)
somewhere – anywhere – nowhere – everywhere (for places)
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