What if this prepositional phrase is just a simple modifier a simple. Ad Correct Grammatical Errors and Improve Your Writing. Prepositions Prepositional Phrases In 2 Prepositional Phrases English Idioms Learn English Vocabulary Yes all these can start sentences. Can you begin a sentence with a prepositional phrase . When you do this you should usually place a comma after the phrase. Sentences and clauses that begin with with are doomed to be weak. Discussions describe how to improve the sentence and revisions. Sentences can begin with prepositional phrases. For example in the sentence I filled the baskets with apples. Ad Correct Grammatical Errors and Improve Your Writing. The object of the preposition will often have one or more modifiers to describe. At one time prescriptivist grammarians were very srtraight laced against beginning sentences with prepositions. Can you start a sentence with a prepositional phrase. Prepositional Phrase at the Beginning of