to undergo
Irregular verb: undergo - underwent- undergone

Indicative 	
Present 	Present continuous 	Preterite 	Preterite continuous 	
I undergo
you undergo
he undergoes
we undergo
you undergo
they undergo 	I'mundergoing
you'reundergoing
he'sundergoing
we'reundergoing
you'reundergoing
they'reundergoing	Iunderwent
youunderwent
heunderwent
weunderwent
youunderwent
theyunderwent	Iwasundergoing
youwereundergoing
hewasundergoing
wewereundergoing
youwereundergoing
theywereundergoing	
Present perfect 	Present perfect continuous 	Pluperfect 	Pluperfect continuous 	
I've undergone
you've undergone
he's undergone
we've undergone
you've undergone
they've undergone	I'vebeen undergoing
you'vebeen undergoing
he'sbeen undergoing
we'vebeen undergoing
you'vebeen undergoing
they'vebeen undergoing	I'd undergone
you'd undergone
he'd undergone
we'd undergone
you'd undergone
they'd undergone	I'd been undergoing
you'd been undergoing
he'd been undergoing
we'd been undergoing
you'd been undergoing
they'd been undergoing	
Future 	Future continuous 	Future perfect 	Future perfect continuous 	
I'll undergo
you'll undergo
he'll undergo
we'll undergo
you'll undergo
they'll undergo 	I'll be undergoing
you'll be undergoing
he'll be undergoing
we'll be undergoing
you'll be undergoing
they'll be undergoing	I'll have undergone
you'll have undergone
he'll have undergone
we'll have undergone
you'll have undergone
they'll have undergone	I'll have been undergoing
you'll have been undergoing
he'll have been undergoing
we'll have been undergoing
you'll have been undergoing
they'll have been undergoing	

Conditional 	
Present 	Present continuous 	Past 	Past continuous 	
I'd undergo
you'd undergo
he'd undergo
we'd undergo
you'd undergo
they'd undergo 	I'd be undergoing
you'd be undergoing
he'd be undergoing
we'd be undergoing
you'd be undergoing
they'd be undergoing	I'd have undergone
you'd have undergone
he'd have undergone
we'd have undergone
you'd have undergone
they'd have undergone	I'd have been undergoing
you'd have been undergoing
he'd have been undergoing
we'd have been undergoing
you'd have been undergoing
they'd have been undergoing	

Infinitive 	
Imperative 	
Infinitive 	 	Imperative 	 	
to undergo 	 	undergo
Let's undergo
undergo 	 	

Participle 	
Present 	Past 	 	 	
undergoing	undergone