Some Any
There is some tea in the cup. ( “some” is used with the affirmative form) {+}
There isn’t any tea in the cup.(“any” is used with the negative form) {-}
Is there any tea in the cup?(“any” is used with the interrogative form) {?}
Yes, there is -No there isn’t.
There are some pens on the desk. (+)
There aren’t any pens on the desk.(-)
Are there any pens on the desk?
Yes, there are OR No, there aren’t.