Can I use prepositions of place to vary the openings of my sentences?

A preposition is a word that joins a noun to the rest of a sentence. It explains where the noun is. The bag was on the table. The girl walked under the scaffolding. It sat among the bushes. The sentences would not work without the prepositions.

* The cat sat under the bush as it was raining. * The girl walked slowly across the playground. * Helen put the book on the table. * The postman posted the letter through the letterbox. * James was hiding behind the sofa.

* The cat sat under the bush as it was raining. * The girl walked slowly across the playground. * Helen put the book on the table. * The postman posted the letter through the letterbox. * James was hiding behind the sofa.

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* Here is a sentence with a preposition: Charles left his bag behind the settee. * To create an impressive sentence, you could try opening the sentence with the preposition. Behind the settee, Charles left his bag.

Original sentence: A fat yellow cat lay sleeping on the narrow sill. How would it read if it started with the preposition? On the narrow sill, a fat yellow cat lay sleeping. * Prepositional phrases that begin sentences are usually followed by commas. However, short prepositional phrases need not be.