There is/are
Existence Verbs
For example: "There is a park near my house" (not "A park is near my house"), "There are two cats in the garden" (not "Two cats are in the garden").
"There is" and "There are" are phrases that we use to show the existence of something. We use "There is" when we are talking about one thing, and "There are" when we are talking about more than one thing.
For example, if we are in a park and we see a tree, we can say "There is a tree" to show that the tree exists. If we see many trees, we can say "There are trees" to show that there are more than one.
We use "There is" and "There are" to describe things we can see or imagine, or to introduce new things to a conversation. They are very useful when we want to tell someone about something we saw or experienced. So, when you hear or use these phrases, you know they mean that something exists, and they can help you describe your experiences in a clear way.