should counteract
Regular verb: counteract - counteracted- counteracted

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

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should not counteract
you should not counteract
he should not counteract
we should not counteract
you should not counteract
they should not counteract 	I should not be counteracting
you should not be counteracting
he should not be counteracting
we should not be counteracting
you should not be counteracting
they should not be counteracting	I should not have counteracted
you should not have counteracted
he should not have counteracted
we should not have counteracted
you should not have counteracted
they should not have counteracted	I should not have been counteracting
you should not have been counteracting
he should not have been counteracting
we should not have been counteracting
you should not have been counteracting
they should not have been counteracting	

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

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I not counteract?
should you not counteract?
should he not counteract?
should we not counteract?
should you not counteract?
should they not counteract? 	should I not be counteracting?
should you not be counteracting?
should he not be counteracting?
should we not be counteracting?
should you not be counteracting?
should they not be counteracting? 	should I not have counteracted?
should you not have counteracted?
should he not have counteracted?
should we not have counteracted?
should you not have counteracted?
should they not have counteracted? 	should I not have been counteracting?
should you not have been counteracting?
should he not have been counteracting?
should we not have been counteracting?
should you not have been counteracting?
should they not have been counteracting?