The past tense is challenged.
Present Simple: I should accept your challenge. Past Simple: I should have accepted your challenge.
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
The word challenged is not a noun. The word 'challenged' is the past participle, past tense of the verb to challenge. The past participle of the verb is also an adjective.The word challenge is the noun form.Example: Are you up to the challenge?The noun forms of the verb to challenge are challenger and the gerund, challenging.
"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".
HAD is the Past Tense of TO HAVE.
The past tense of "you will not" is "you would not."
The past tense of "am" is "was" and the past perfect tense of "has" is "had."