What is the difference between: Everyone is having a hard time (passing) the test.

VS

Everyone is have a hard time (to pass) the test.

the above one says everybody is having a hard time passing the test means they are having a hard time passing the question paper. and the second means that they are having a hard time to get the average marks (pass Mark.)

that is literally a whole assignment and i'm not sure anyone in their right mind or even wrong mind is going to do an entire assignment for someone just for 100 points on a website. sorry to tell you like

remember, the goal of an adjective clause is to add more information to a noun or a pronoun. as you can see from the examples above, you can add information by including a longer adjective clause or tighten up a sentence by turning the adjective clause into an adjective phrase.