English verb conjugation
CAN UNDERGO

Irregular verb: undergo - underwent - undergone

Affirmation

Simple form	V-ing form
I can undergo you can undergo he can undergo we can undergo you can undergo they can undergo	I can be undergoing you can be undergoing he can be undergoing we can be undergoing you can be undergoing they can be undergoing
Perfect	V-ing perfect
I can have undergone you can have undergone he can have undergone we can have undergone you can have undergone they can have undergone	I can have been undergoing you can have been undergoing he can have been undergoing we can have been undergoing you can have been undergoing they can have been undergoing

Negation

Simple form	V-ing form
I can't undergo you can't undergo he can't undergo we can't undergo you can't undergo they can't undergo	I can't be undergoing you can't be undergoing he can't be undergoing we can't be undergoing you can't be undergoing they can't be undergoing
Perfect	V-ing perfect
I can't have undergone you can't have undergone he can't have undergone we can't have undergone you can't have undergone they can't have undergone	I can't have been undergoing you can't have been undergoing he can't have been undergoing we can't have been undergoing you can't have been undergoing they can't have been undergoing

Interrogative form

Simple form	V-ing form
can I undergo? can you undergo? can he undergo? can we undergo? can you undergo? can they undergo?	can I be undergoing? can you be undergoing? can he be undergoing? can we be undergoing? can you be undergoing? can they be undergoing?
Perfect	V-ing perfect
can I have undergone? can you have undergone? can he have undergone? can we have undergone? can you have undergone? can they have undergone?	can I have been undergoing? can you have been undergoing? can he have been undergoing? can we have been undergoing? can you have been undergoing? can they have been undergoing?

Interro-negative form

Simple form	V-ing form
can't I undergo? can't you undergo? can't he undergo? can't we undergo? can't you undergo? can't they undergo?	can't I be undergoing? can't you be undergoing? can't he be undergoing? can't we be undergoing? can't you be undergoing? can't they be undergoing?
Perfect	V-ing perfect
can't I have undergone? can't you have undergone? can't he have undergone? can't we have undergone? can't you have undergone? can't they have undergone?	can't I have been undergoing? can't you have been undergoing? can't he have been undergoing? can't we have been undergoing? can't you have been undergoing? can't they have been undergoing?