Read the text below and answer the question that follows.

If I save enough money.

Which element is necessary to complete the sentence above?

a. subject

b. predicate

c. prepositional phrase

d. independent clause

The element necessary to complete the sentence above is D) independent clause.

You already have a subject (I) and a predicate (save), so these two are not needed, nor is a prepositional phrase. But you need an independent clause, because this is a dependent clause which cannot stand on its own. For example:

If I save enough money, I will buy a car.