English verb conjugation
CAN UNDERACT

Regular verb: underact - underacted - underacted

Affirmation

Simple form	V-ing form
I can underact you can underact he can underact we can underact you can underact they can underact	I can be underacting you can be underacting he can be underacting we can be underacting you can be underacting they can be underacting
Perfect	V-ing perfect
I can have underacted you can have underacted he can have underacted we can have underacted you can have underacted they can have underacted	I can have been underacting you can have been underacting he can have been underacting we can have been underacting you can have been underacting they can have been underacting

Negation

Simple form	V-ing form
I can't underact you can't underact he can't underact we can't underact you can't underact they can't underact	I can't be underacting you can't be underacting he can't be underacting we can't be underacting you can't be underacting they can't be underacting
Perfect	V-ing perfect
I can't have underacted you can't have underacted he can't have underacted we can't have underacted you can't have underacted they can't have underacted	I can't have been underacting you can't have been underacting he can't have been underacting we can't have been underacting you can't have been underacting they can't have been underacting

Interrogative form

Simple form	V-ing form
can I underact? can you underact? can he underact? can we underact? can you underact? can they underact?	can I be underacting? can you be underacting? can he be underacting? can we be underacting? can you be underacting? can they be underacting?
Perfect	V-ing perfect
can I have underacted? can you have underacted? can he have underacted? can we have underacted? can you have underacted? can they have underacted?	can I have been underacting? can you have been underacting? can he have been underacting? can we have been underacting? can you have been underacting? can they have been underacting?

Interro-negative form

Simple form	V-ing form
can't I underact? can't you underact? can't he underact? can't we underact? can't you underact? can't they underact?	can't I be underacting? can't you be underacting? can't he be underacting? can't we be underacting? can't you be underacting? can't they be underacting?
Perfect	V-ing perfect
can't I have underacted? can't you have underacted? can't he have underacted? can't we have underacted? can't you have underacted? can't they have underacted?	can't I have been underacting? can't you have been underacting? can't he have been underacting? can't we have been underacting? can't you have been underacting? can't they have been underacting?