Yes, the word exercised is a verb, the past participle of the verb to exercise. The past participle of a verb is also an adjective. Example uses:
Verb: We exercised everyday before going to school.
Verb: They exercised the 'no questions asked return guarantee' by returning it.
Adjective: The exercised puppies are so frisky when they're returned to their cages.
The past perfect tense of exercise is had exercised.
The verb form of exertion is exert.
As in "to exert something".
The past tense of exercise is exercised.
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 of am is was and the past tense of has is had
The past tense of "she do" is "she did."
Exercise is a verb. It describes an action.
The word "were" is past tense. It is the past tense of the verb "to be."
The future tense is 'will exercise'
The past tense of "will" is "would" and the past tense of "be" is "was" or "were" depending on the subject (singular or plural).
The past tense of "am" is "was" and the past perfect tense of "has" is "had."
HAD is the Past Tense of TO HAVE.
The past tense of "have" is "had."