I don't think 'error' can be a verb. The verb form is err(pt. erred ; pp.erred).
The past tense is errored.
Yes. 'was' is a past tense of 'is', and 'is' is a verb and so 'was' must be a verb.
Yes, was is a verb ; the simple past tense of is.
Yes, it is a verb. It is the past tense of "to have" and used as an auxiliary verb in the past perfect tense.
No, it is a verb. Specifically, it is the past tense of the verb "to go."
The past tense of the verb 'am' is 'was' or 'were.' The verb 'am' is derived from the verb 'to be.'
The past tense verb for "do" is "did."
By is not a verb and does not have a past tense. Buy is a verb, and the past tense is bought.
The verb is still "to be", regardless of the tense. It is an irregular verb, and the past tense forms are was for I and he/she/it, and were for we, you, and they.
"Shook" is the past tense of the verb, "to shake".
The past tense of the verb to promise is promised.
reside is the verb. Resided is the past tense.
The past tense of the verb take is took
The abbreviation for the past tense verb is "past."
Yes you could, but you would be using it in error. In English, people speak and write in error all the time. Dealt is the correct form of the past tense of the verb to deal.
Departure is not a verb and does not have a past tense. Depart is a verb, and the past tense is departed.
Inactive is not a verb and does not have a past tense. Inactivate is a verb, and the past tense is inactivated.