The past tense of 'undergo is 'underwent'
I underwent major surgery.
The past participle of 'undergo' is 'undergone'
After I had undergone major surgery I felt much better,
Regular verbs follow a consistent pattern when forming their past tense and past participle. For example, the past tense of "walk" is "walked," and the past participle is also "walked." Another example is "jump," where both the past tense and past participle are "jumped." These verbs do not undergo any changes in their form when moving from present to past tense.
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".
Underwent is the past tense of undergo. Undergone is the past participle.
Regular verbs follow a consistent pattern when forming their past tense and past participle. For example, the past tense of "walk" is "walked," and the past participle is also "walked." Another example is "jump," where both the past tense and past participle are "jumped." These verbs do not undergo any changes in their form when moving from present to past tense.
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."
Underwent is a verb, the past tense of undergo.
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".
HAD is the Past Tense of TO HAVE.
The past tense of "you will not" is "you would not."