Something, anything, nothing, etc.

Something, anything, nothing, etc.
	Positive	Questions and Negative verb	Short Negative Answer
people	somebody, someone	anybody, anyone	nobody, no one
things	something	anything	nothing
places	somewhere	anywhere	nowhere

Use some*** when you don't say exactly who, what or where.
Somebody broke the window.

Use any*** in questions or with a negative verb.
I didn't do anything last night.

Use no*** in short negative answer or in a sentecne (with a positive verb.
Who's in the bathroom? Nobody. Nobody's in the bathoom.

Somebody, nobody, etc. are the same as Someone, no one, etc.