Is "had" an example of a "to be" verb?

No, 'had' is the past tense of the verb 'to have.'

Thank You

You're very welcome.

No, "had" is not an example of a "to be" verb. The "to be" verbs include forms of "am," "is," "are," "was," "were," "be," "being," and "been." These verbs are used to indicate a state of being or existence.

On the other hand, "had" is a past tense form of the verb "have." "Have" is used as a main verb to indicate possession, experience, or action. "Had" specifically represents the past tense of "have" when referring to possession or past actions. For example, "I had a book" or "She had already eaten." So, "had" is not considered a "to be" verb, but rather a past tense form of "have."