English verb conjugation
CAN UNDERREACT

Regular verb: underreact - underreacted - underreacted

Affirmation

Simple form	V-ing form
I can underreact you can underreact he can underreact we can underreact you can underreact they can underreact	I can be underreacting you can be underreacting he can be underreacting we can be underreacting you can be underreacting they can be underreacting
Perfect	V-ing perfect
I can have underreacted you can have underreacted he can have underreacted we can have underreacted you can have underreacted they can have underreacted	I can have been underreacting you can have been underreacting he can have been underreacting we can have been underreacting you can have been underreacting they can have been underreacting

Negation

Simple form	V-ing form
I cannot underreact you cannot underreact he cannot underreact we cannot underreact you cannot underreact they cannot underreact	I cannot be underreacting you cannot be underreacting he cannot be underreacting we cannot be underreacting you cannot be underreacting they cannot be underreacting
Perfect	V-ing perfect
I cannot have underreacted you cannot have underreacted he cannot have underreacted we cannot have underreacted you cannot have underreacted they cannot have underreacted	I cannot have been underreacting you cannot have been underreacting he cannot have been underreacting we cannot have been underreacting you cannot have been underreacting they cannot have been underreacting

Interrogative form

Simple form	V-ing form
can I underreact? can you underreact? can he underreact? can we underreact? can you underreact? can they underreact?	can I be underreacting? can you be underreacting? can he be underreacting? can we be underreacting? can you be underreacting? can they be underreacting?
Perfect	V-ing perfect
can I have underreacted? can you have underreacted? can he have underreacted? can we have underreacted? can you have underreacted? can they have underreacted?	can I have been underreacting? can you have been underreacting? can he have been underreacting? can we have been underreacting? can you have been underreacting? can they have been underreacting?

Interro-negative form

Simple form	V-ing form
can I not underreact? can you not underreact? can he not underreact? can we not underreact? can you not underreact? can they not underreact?	can I not be underreacting? can you not be underreacting? can he not be underreacting? can we not be underreacting? can you not be underreacting? can they not be underreacting?
Perfect	V-ing perfect
can I not have underreacted? can you not have underreacted? can he not have underreacted? can we not have underreacted? can you not have underreacted? can they not have underreacted?	can I not have been underreacting? can you not have been underreacting? can he not have been underreacting? can we not have been underreacting? can you not have been underreacting? can they not have been underreacting?