What part of speech is sent?

"Sent" can be several parts of speech, depending on how it's used in a sentence:

* Verb: This is the most common usage. Example: "He sent a letter."

* Past participle: Used as part of a verb phrase. Example: "The letter has been sent."

* Adjective: Describes a noun. Example: "The sent letter was lost."

To figure out the correct part of speech, look at its role in the sentence.