What part of speech is then?

"Then" can be several parts of speech, depending on its function in a sentence:

* Adverb: This is the most common use. "Then" indicates time or sequence.

* Example: "I went to the store, and then I went home."

* Conjunction: "Then" can join two clauses, indicating a cause-and-effect relationship.

* Example: "He studied hard, then he aced the test."

* Adjective: While less common, "then" can sometimes modify a noun, referring to a time period.

* Example: "The then president made a statement."

To determine the part of speech, consider its role in the sentence and how it functions grammatically.