Prepare is the present tense of prepared.
The present tense of 'teacher prepared exams' is 'teacher prepares exams'.
I have prepared.
This is a present continuous passive verb phrase.The meal is being prepared now.
Prepared is a past tense already, but if it's being used as an adjective, then it is was prepared.
'is' is a present tense
The verb is is the present tense.
No, it is not a conjunction. It is a verb: the present perfect tense, third person singular conjugation of the verb to prepare.
Present perfect tense.
it's present tense actually
"you do" is present tense. The past tense is "you did" and the future tense is "you will do".
The past tense of did is did. The present tense of did is do. The future tense of did is will do.
It was, (past tense) it is, (present tense) it will be( future tense)