Fragments That Start with Prepositions

Whenever a preposition starts what you think is a sentence, check for a subject, a verb, and a complete thought. If any one of those is missing, you have a fragment.

For a list of common prepositions, see “Subjects” in Chapter 15.

FRAGMENT The plane crashed into the house. With a deafening roar. [With a deafening roar is a prepositional phrase that starts with the preposition with. The phrase has neither a subject nor a verb. It is a fragment.]

Correct the fragment by connecting it to the sentence either before or after it. If you connect the fragment to the sentence after it, put a comma after the fragment to join it to the sentence.

FRAGMENT The plane crashed into the house. From a height of eight hundred feet.
CORRECTED image
CORRECTED From a height of eight hundred feet, the plane crashed into the house.