Question

should there be a comma before the highlighted word?
before sheldon planktons birthday party begins he needs to set up the disco ball.
add a comma
dont add a comma

Explanation:

The opening clause "Before Sheldon Plankton's birthday party begins" is a dependent adverbial clause that comes before the independent main clause "he needs to set up the disco ball". When a dependent clause precedes an independent clause, a comma is required to separate them.

Answer:

Add a Comma