There is/are/was, etc.
A1
used to show that something exists or happens
Dictionary examples:
There is a pizza eating my homework! (0.0)
There was a book reading itself! (0.0)
There are five cats in my hat! (0.0)
Is there any milk? (4.4)
There have been a lot of accidents on this road. (12.8)
There are three bars in the village. (15.0)
There's not much room in the back of the car. (21.5)