Conjugation of the verb "undergo"
Conjugation of the verb undergo[ˌʌndəˈɡəu],
irregular 
Indicative
Present Indefinite
Present Continuous
Present Perfect
Present Perfect Continuous
Past Indefinite
Past Continuous
Past Perfect
Past Perfect Continuous
Future Indefinite
Future Continuous
Future Perfect
Future Perfect Continuous
Indicative
Present Indefinite
I don't undergoyou don't undergo
he/she/it doesn't undergo
we don't undergo
you don't undergo
they don't undergo
Present Continuous
I am not undergoingyou aren't undergoing
he/she/it isn't undergoing
we aren't undergoing
you aren't undergoing
they aren't undergoing
Present Perfect
I haven't undergoneyou haven't undergone
he/she/it hasn't undergone
we haven't undergone
you haven't undergone
they haven't undergone
Present Perfect Continuous
I haven't been undergoingyou haven't been undergoing
he/she/it hasn't been undergoing
we haven't been undergoing
you haven't been undergoing
they haven't been undergoing
Past Indefinite
I didn't undergoyou didn't undergo
he/she/it didn't undergo
we didn't undergo
you didn't undergo
they didn't undergo
Past Continuous
I wasn't undergoingyou weren't undergoing
he/she/it wasn't undergoing
we weren't undergoing
you weren't undergoing
they weren't undergoing
Past Perfect
I hadn't undergoneyou hadn't undergone
he/she/it hadn't undergone
we hadn't undergone
you hadn't undergone
they hadn't undergone
Past Perfect Continuous
I hadn't been undergoingyou hadn't been undergoing
he/she/it hadn't been undergoing
we hadn't been undergoing
you hadn't been undergoing
they hadn't been undergoing
Future Indefinite
I shan't / won't undergoyou won't undergo
he/she/it won't undergo
we shan't / won't undergo
you won't undergo
they won't undergo
Future Continuous
I shan't / won't be undergoingyou won't be undergoing
he/she/it won't be undergoing
we shan't / won't be undergoing
you won't be undergoing
they won't be undergoing
Future Perfect
I shan't / won't have undergoneyou won't have undergone
he/she/it won't have undergone
we shan't / won't have undergone
you won't have undergone
they won't have undergone
Future Perfect Continuous
I shan't / won't have been undergoingyou won't have been undergoing
he/she/it won't have been undergoing
we shan't / won't have been undergoing
you won't have been undergoing
they won't have been undergoing
Indicative
Present Indefinite
do I undergo?do you undergo?
does he/she/it undergo?
do we undergo?
do you undergo?
do they undergo?
Present Continuous
am I undergoing?are you undergoing?
is he/she/it undergoing?
are we undergoing?
are you undergoing?
are they undergoing?
Present Perfect
have I undergone?have you undergone?
has he/she/it undergone?
have we undergone?
have you undergone?
have they undergone?
Present Perfect Continuous
have I been undergoing?have you been undergoing?
has he/she/it been undergoing?
have we been undergoing?
have you been undergoing?
have they been undergoing?
Past Indefinite
did I undergo?did you undergo?
did he/she/it undergo?
did we undergo?
did you undergo?
did they undergo?
Past Continuous
was I undergoing?were you undergoing?
was he/she/it undergoing?
were we undergoing?
were you undergoing?
were they undergoing?
Past Perfect
had I undergone?had you undergone?
had he/she/it undergone?
had we undergone?
had you undergone?
had they undergone?
Past Perfect Continuous
had I been undergoing?had you been undergoing?
had he/she/it been undergoing?
had we been undergoing?
had you been undergoing?
had they been undergoing?
Future Indefinite
will I undergo?will you undergo?
will he/she/it undergo?
will we undergo?
will you undergo?
will they undergo?
Future Continuous
will I be undergoing?will you be undergoing?
will he/she/it be undergoing?
will we be undergoing?
will you be undergoing?
will they be undergoing?
Future Perfect
will I have undergone?will you have undergone?
will he/she/it have undergone?
will we have undergone?
will you have undergone?
will they have undergone?
Future Perfect Continuous
will I have been undergoing?will you have been undergoing?
will he/she/it have been undergoing?
will we have been undergoing?
will you have been undergoing?
will they have been undergoing?
Conditional
Conditional Present
Conditional Present Continuous
Conditional Perfect
Conditional Perfect Continuous
Conditional
Conditional Present
I wouldn't undergoyou wouldn't undergo
he/she/it wouldn't undergo
we wouldn't undergo
you wouldn't undergo
they wouldn't undergo
Conditional Present Continuous
I wouldn't be undergoingyou wouldn't be undergoing
he/she/it wouldn't be undergoing
we wouldn't be undergoing
you wouldn't be undergoing
they wouldn't be undergoing
Conditional Perfect
I wouldn't have undergoneyou wouldn't have undergone
he/she/it wouldn't have undergone
we wouldn't have undergone
you wouldn't have undergone
they wouldn't have undergone
Conditional Perfect Continuous
I wouldn't have been undergoingyou wouldn't have been undergoing
he/she/it wouldn't have been undergoing
we wouldn't have been undergoing
you wouldn't have been undergoing
they wouldn't have been undergoing
Conditional
Conditional Present
would I undergo?would you undergo?
would he/she/it undergo?
would we undergo?
would you undergo?
would they undergo?
Conditional Present Continuous
would I be undergoing?would you be undergoing?
would he/she/it be undergoing?
would we be undergoing?
would you be undergoing?
would they be undergoing?
Conditional Perfect
would I have undergone?would you have undergone?
would he/she/it have undergone?
would we have undergone?
would you have undergone?
would they have undergone?
Conditional Perfect Continuous
would I have been undergoing?would you have been undergoing?
would he/she/it have been undergoing?
would we have been undergoing?
would you have been undergoing?
would they have been undergoing?
Participles
Present
Past
Infinitives
Infinitives
Popular English Verbs
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