English verb conjugation
CAN COUNTERACT

Regular verb: counteract - counteracted - counteracted

Affirmation

Simple form	V-ing form
I can counteract you can counteract he can counteract we can counteract you can counteract they can counteract	I can be counteracting you can be counteracting he can be counteracting we can be counteracting you can be counteracting they can be counteracting
Perfect	V-ing perfect
I can have counteracted you can have counteracted he can have counteracted we can have counteracted you can have counteracted they can have counteracted	I can have been counteracting you can have been counteracting he can have been counteracting we can have been counteracting you can have been counteracting they can have been counteracting

Negation

Simple form	V-ing form
I can't counteract you can't counteract he can't counteract we can't counteract you can't counteract they can't counteract	I can't be counteracting you can't be counteracting he can't be counteracting we can't be counteracting you can't be counteracting they can't be counteracting
Perfect	V-ing perfect
I can't have counteracted you can't have counteracted he can't have counteracted we can't have counteracted you can't have counteracted they can't have counteracted	I can't have been counteracting you can't have been counteracting he can't have been counteracting we can't have been counteracting you can't have been counteracting they can't have been counteracting

Interrogative form

Simple form	V-ing form
can I counteract? can you counteract? can he counteract? can we counteract? can you counteract? can they counteract?	can I be counteracting? can you be counteracting? can he be counteracting? can we be counteracting? can you be counteracting? can they be counteracting?
Perfect	V-ing perfect
can I have counteracted? can you have counteracted? can he have counteracted? can we have counteracted? can you have counteracted? can they have counteracted?	can I have been counteracting? can you have been counteracting? can he have been counteracting? can we have been counteracting? can you have been counteracting? can they have been counteracting?

Interro-negative form

Simple form	V-ing form
can't I counteract? can't you counteract? can't he counteract? can't we counteract? can't you counteract? can't they counteract?	can't I be counteracting? can't you be counteracting? can't he be counteracting? can't we be counteracting? can't you be counteracting? can't they be counteracting?
Perfect	V-ing perfect
can't I have counteracted? can't you have counteracted? can't he have counteracted? can't we have counteracted? can't you have counteracted? can't they have counteracted?	can't I have been counteracting? can't you have been counteracting? can't he have been counteracting? can't we have been counteracting? can't you have been counteracting? can't they have been counteracting?