Flies is the present tense third person of fly.
He flies to work in London.
The past of fly is flew.
He flew to London yesterday.
No, "flies" is a present tense verb.
I fly, he/she flies
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 past-tense verb for "be" is "was" or "were" depending on the subject.
The past tense of the verb 'am' is 'was' or 'were.' The verb 'am' is derived from the verb 'to be.'
"Shook" is the past tense of the verb, "to shake".
Slept is the past tense of the verb sleep, so there is no past tense for it.
Inactive is not a verb and does not have a past tense. Inactivate is a verb, and the past tense is inactivated.
The past tense of the verb "lead" is "led".
The past tense of the verb 'pull' is 'pulled'.
Departure is not a verb and does not have a past tense. Depart is a verb, and the past tense is departed.