The past tense is bought.
bought
By is not a verb and does not have a past tense. Buy is a verb, and the past tense is bought.
"Bought" is the past tense of the verb "to buy".
This sentence is already in the past tense. "Went" is the past tense of the verb "go".
The past tense verb for "do" is "did."
The past tense of the verb 'am' is 'was' or 'were.' The verb 'am' is derived from the verb 'to be.'
No - a past tense verb is a past tense verb, nothing to do with nouns.
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.
Departure is not a verb and does not have a past tense. Depart is a verb, and the past tense is departed.
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.
Buyed is not a word in any language. But the past tense of buy is bought not Buyed though.
Planned is a verb. It is the past tense of plan.