The past tense of experiment is experimented.
"They were doing an experiment" is past tense.
The past tense of experiment is experimented.
The students obeyed the teacher's instructions during the experiment.
Yes, it is a form of the verb "to experiment." It is the past tense and past participle of the verb, but is not used as an adjective.
the past tense of am is was and the past tense of has is had
The past tense of "has" is "had" and the past tense of "have" is "had."
Was and were are both the past tense of be. The present tense is: I am he is you are they are The past tense is: I was he was you were they were
"will be" is the future tense of "be". The past tense of "be" is "was/were".
The past tense is she did.
The word "were" is past tense. It is the past tense of the verb "to be."
The past tense of "will" is "would". The past tense of "to be" is "was" or "were".
The past tense of "you will not" is "you would not."