The past tense is "looked"
No it's a regular verb. You can tell if a verb is regular or irregular by looking at its past tense form. If the past tense ends in -ed then the verb is regular. (e.g. the past tense of look is looked)
it is an action verb in past tense form the present tense is look
Yes it's a past tense form of the verb "be".
No, "have" is not a past tense verb. It is an auxiliary verb used to form the perfect tenses in English, such as "I have eaten." The past tense form of "have" is "had."
To is not a verb and does not have a past tense form.
When used with the definite article the, look is a noun. The past tense of the verb look is looked.
"Has" is the present tense form of the verb "have." The past tense form of "has" is "had."
This is past tense. Although the verb give is in the present form the tense is shown by the auxiliary verb do, which is in the past - did.
It is the past tense of the regular verb reveal.
Arrival is not a verb and does not have a past tense. Arrive is the verb form, and arrived is the past tense and past participle.
Yes it's just the past tense form of the verb.
The word synchronized is a verb. It is the past tense form of the verb synchronize.