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"Of course" is a form of "of course", a phrase which is often translated as "por supuesto". "There is" is a phrase which is often translated as "hay". Learn more about the difference between "of course" and "there is" below.
of course()
A phrase is a group of words commonly used together (e.g., once upon a time).
1. (general)
there is()
A phrase is a group of words commonly used together (e.g., once upon a time).