The compouns for some and any behave in the same way as some and any , that is to say, so...
The compouns for some and any behave in the same way as some and any, that is to say, some in affirmative sentences and any, in negatives and questions.
I saw someone there.
I didn't see anyone there.
Did you see anyone there?
We use the pronouns ending in -one to refer to people, and those ending in -thing to refer to things and animals.
Ask anyone. They'll tell you.
You've dropped something. It's your passport.
We use the indefinite adverb anywhere and somewhere to talk about places in a general way.
I thought I'd seen you somewhere.
I can't find Barbara anyhere.
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