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 can't underreact you can't underreact he can't underreact we can't underreact you can't underreact they can't underreact	I can't be underreacting you can't be underreacting he can't be underreacting we can't be underreacting you can't be underreacting they can't be underreacting
Perfect	V-ing perfect
I can't have underreacted you can't have underreacted he can't have underreacted we can't have underreacted you can't have underreacted they can't have underreacted	I can't have been underreacting you can't have been underreacting he can't have been underreacting we can't have been underreacting you can't have been underreacting they can't 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't I underreact? can't you underreact? can't he underreact? can't we underreact? can't you underreact? can't they underreact?	can't I be underreacting? can't you be underreacting? can't he be underreacting? can't we be underreacting? can't you be underreacting? can't they be underreacting?
Perfect	V-ing perfect
can't I have underreacted? can't you have underreacted? can't he have underreacted? can't we have underreacted? can't you have underreacted? can't they have underreacted?	can't I have been underreacting? can't you have been underreacting? can't he have been underreacting? can't we have been underreacting? can't you have been underreacting? can't they have been underreacting?