might concentrate
Regular verb: concentrate - concentrated- concentrated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I might concentrate
you might concentrate
he might concentrate
we might concentrate
you might concentrate
they might concentrate 	I might be concentrating
you might be concentrating
he might be concentrating
we might be concentrating
you might be concentrating
they might be concentrating	I might have concentrated
you might have concentrated
he might have concentrated
we might have concentrated
you might have concentrated
they might have concentrated	I might have been concentrating
you might have been concentrating
he might have been concentrating
we might have been concentrating
you might have been concentrating
they might have been concentrating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I might not concentrate
you might not concentrate
he might not concentrate
we might not concentrate
you might not concentrate
they might not concentrate 	I might not be concentrating
you might not be concentrating
he might not be concentrating
we might not be concentrating
you might not be concentrating
they might not be concentrating	I might not have concentrated
you might not have concentrated
he might not have concentrated
we might not have concentrated
you might not have concentrated
they might not have concentrated	I might not have been concentrating
you might not have been concentrating
he might not have been concentrating
we might not have been concentrating
you might not have been concentrating
they might not have been concentrating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
might I concentrate?
might you concentrate?
might he concentrate?
might we concentrate?
might you concentrate?
might they concentrate? 	might I be concentrating?
might you be concentrating?
might he be concentrating?
might we be concentrating?
might you be concentrating?
might they be concentrating? 	might I have concentrated?
might you have concentrated?
might he have concentrated?
might we have concentrated?
might you have concentrated?
might they have concentrated? 	might I have been concentrating?
might you have been concentrating?
might he have been concentrating?
might we have been concentrating?
might you have been concentrating?
might they have been concentrating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
might I not concentrate?
might you not concentrate?
might he not concentrate?
might we not concentrate?
might you not concentrate?
might they not concentrate? 	might I not be concentrating?
might you not be concentrating?
might he not be concentrating?
might we not be concentrating?
might you not be concentrating?
might they not be concentrating? 	might I not have concentrated?
might you not have concentrated?
might he not have concentrated?
might we not have concentrated?
might you not have concentrated?
might they not have concentrated? 	might I not have been concentrating?
might you not have been concentrating?
might he not have been concentrating?
might we not have been concentrating?
might you not have been concentrating?
might they not have been concentrating?