Highlight: Use prepositions as needed, even at the ends of sentences.
Use and place prepositions wherever necessary. It’s completely fine to end a sentence with a preposition when it improves readability. Place the preposition in a reasonable position such that the reader easily understands the sentence.
Avoid prepositions that complicate sentences unnecessarily.
Examples
Prepositional phrases
A prepositional phrase consists of a preposition and the words that follow it. In a prepositional phrase, the object (the following words), may be a noun, pronoun, gerund, or clause.
Example
Avoid making long prepositional phrases. Long prepositional phrases are difficult to read and interpret.