There is no past tense because mad is an adjective.
Example: I am mad. Mad is a predicate adjective describing the subject I.
To use it in the past, it becomes I was mad. The verb, to be, changed, but the
adjective stayed the way it is.
Destroyed is the past tense of destroy...therefore there is not a past tense for destroyed.
The past tense is smote.
"Responsible" is an adjective. It does not have a past tense. Instead, the past tense would apply to the word before. (Present - she is responsible, Past - she was responsible.)
The word 'at' is not a verb and so doesn't have a past tense.
The past tense of clean is cleaned.
the past tense of am is was and the past tense of has is had
The past tense of get is got. For isn't a verb and so doesn't have a past tense. The past tense of has is had. Had is already the past tense. 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 past tense of "will" is "would". The past tense of "to be" is "was" or "were".
Wrote is past tense. It is the past tense of write.Wrote is already a past tense.
The past tense of "finish" is "finished". The past tense of "be" is "was" (singular) or "were" (plural).
The past tense is schooled. The past continuous tense is 'was/were schooling'.
Simple past tense. Past perfect tense. Past continuous tense.
Existed is the past tense. The past perfect tense is had existed.
Met is the past tense of meet, and you can't have past tense of something that is already past tense.
Simple past tense. Past perfect tense. Past perfect continuous tense. Past continuous tense.
Worried is past tense. The present tense is worry.