Checked. It also depends on the sentence in which you plan to use the word check.
Example: 1) Have you checked the gate?
2) Did you check the gate?
Slept is the past tense of the verb sleep, so there is no past tense for it.
"These" is not a verb and does not have a past tense.
Was is a past tense of the verb "be".
Weak is not a verb, so it has no past tense. "Weaken" is the related verb, and its past tense is weakened.
Was is the past tense of is.
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.
Cash (money) is not a verb but is a noun. This means that it has no past tense because only nouns have past tenses. However, the verb to cash out (to quit) has a past tense of to have cashed out. <><><><> You may also use the verb as in "I cashed a check yesterday."
"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."
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.