Verb She crashed the car into a tree, but no one was hurt. He has crashed two cars, a truck, and a motorcycle. We listened to the waves crashing against the shore.

A preposition is a word or group of words used to link nouns, pronouns and phrases to other words in a sentence. Some examples of prepositions are single words like in, at, on, of, to, by and with or phrases such as in front of, next to, instead of.