What part of speech is know?

"Know" can be several parts of speech, depending on its function in a sentence. Here are the most common:

* Verb: This is the most common usage. "I know the answer."

* Auxiliary Verb: Used with another verb to form tenses and moods. "I have known her for years."

* Noun: Sometimes used to refer to knowledge or understanding itself. "He has a great know of history."

Let me know if you want a specific example of a sentence where "know" is used in a particular part of speech!