There is / There are

Meaning:

Both mean "HAY" in Spanish.

Form:

Affirmative: There is a / some...; There are some...

Negative: There isn´t a/any; There aren´t any...

Interrogative: Is there a / any...?; Are there any...?

Use:

THERE IS for singular countable nouns and for uncountable nouns.

THERE ARE for plural countable nouns.

***

You can do some easy exercises here.