English verb conjugation
TO UNDERGO

Irregular verb: undergo - underwent - undergone

Indicative

Present	Present continuous	Preterite	Preterite continuous
don't I undergo? don't you undergo? doesn't he undergo? don't we undergo? don't you undergo? don't they undergo?	am I not undergoing? aren't you undergoing? isn't he undergoing? aren't we undergoing? aren't you undergoing? aren't they undergoing?	didn't I undergo? didn't you undergo? didn't he undergo? didn't we undergo? didn't you undergo? didn't they undergo?	wasn't I undergoing? weren't you undergoing? wasn't he undergoing? weren't we undergoing? weren't you undergoing? weren't they undergoing?
Present perfect	Present perfect continuous	Pluperfect	Pluperfect continuous
haven't I undergone? haven't you undergone? hasn't he undergone? haven't we undergone? haven't you undergone? haven't they undergone?	haven't I been undergoing? haven't you been undergoing? hasn't he been undergoing? haven't we been undergoing? haven't you been undergoing? haven't they been undergoing?	hadn't I undergone? hadn't you undergone? hadn't he undergone? hadn't we undergone? hadn't you undergone? hadn't they undergone?	hadn't I been undergoing? hadn't you been undergoing? hadn't he been undergoing? hadn't we been undergoing? hadn't you been undergoing? hadn't they been undergoing?
Future	Future continuous	Future perfect	Future perfect continuous
won't I undergo? won't you undergo? won't he undergo? won't we undergo? won't you undergo? won't they undergo?	won't I be undergoing? won't you be undergoing? won't he be undergoing? won't we be undergoing? won't you be undergoing? won't they be undergoing?	won't I have undergone? won't you have undergone? won't he have undergone? won't we have undergone? won't you have undergone? won't they have undergone?	won't I have been undergoing? won't you have been undergoing? won't he have been undergoing? won't we have been undergoing? won't you have been undergoing? won't they have been undergoing?

Conditional

Present	Present continuous	Past	Past continuous
wouldn't I undergo? wouldn't you undergo? wouldn't he undergo? wouldn't we undergo? wouldn't you undergo? wouldn't they undergo?	wouldn't I be undergoing? wouldn't you be undergoing? wouldn't he be undergoing? wouldn't we be undergoing? wouldn't you be undergoing? wouldn't they be undergoing?	wouldn't I have undergone? wouldn't you have undergone? wouldn't he have undergone? wouldn't we have undergone? wouldn't you have undergone? wouldn't they have undergone?	wouldn't I have been undergoing? wouldn't you have been undergoing? wouldn't he have been undergoing? wouldn't we have been undergoing? wouldn't you have been undergoing? wouldn't they have been undergoing?

Infinitive

Imperative

Infinitive		Imperative
to undergo		- - -

Participle

Present	Past
undergoing	undergone