“There is” or “there are” are used to describe the existence or presence of someone or something.
Singular = there is
Plural = there are
There is a restaurant near here .
There are a lot of cinemas in town.
Form a question by inverting “there” and the verb:
Is there a toilet here?
Are there any letters for me?
Form the negative using “not” after the verb. It’s often contracted:
There isn’t a space for my car.
There aren’t any books left.