benefited
Cheap is an adjective and does not have a past tense. Verbs have different tenses.Cheapen is a verb and the past tense is cheapened.
Benefit is both a verb and a noun."I will claim my benefit today" is in noun form."This will benefit you" is in verb form.Benefits, benefiting and benefited are other verbs depending on the tense.
The past tense of produce is produced. It's a regular verb so add -ed to make the past.
The past tense of "cost" is "cost." It is an irregular verb, meaning that its form does not change when used in the past tense. For example, you would say, "The item cost $50 last year."
The past tense of cheep is cheeped.
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.
The word benefit can be a noun (with two major meanings) or a verb (to give a benefit or advantage). The verb forms are to benefit (infinitive), benefits (third person, singular present tense), benefiting (present participle), benefited (past tense and past participle)..
"Shook" is the past tense of the verb, "to shake".
The past tense of the verb to promise is promised.
The past tense of the verb take is took
reside is the verb. Resided is the past tense.
The abbreviation for the past tense verb is "past."
Departure is not a verb and does not have a past tense. Depart is a verb, and the past tense is departed.
The past tense is led.