English verb conjugation
MIGHT CONCENTRATE

Regular verb: concentrate - concentrated - concentrated

Affirmation

Simple form	V-ing form
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
Perfect	V-ing perfect
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
I mightn't concentrate you mightn't concentrate he mightn't concentrate we mightn't concentrate you mightn't concentrate they mightn't concentrate	I mightn't be concentrating you mightn't be concentrating he mightn't be concentrating we mightn't be concentrating you mightn't be concentrating they mightn't be concentrating
Perfect	V-ing perfect
I mightn't have concentrated you mightn't have concentrated he mightn't have concentrated we mightn't have concentrated you mightn't have concentrated they mightn't have concentrated	I mightn't have been concentrating you mightn't have been concentrating he mightn't have been concentrating we mightn't have been concentrating you mightn't have been concentrating they mightn't have been concentrating

Interrogative form

Simple form	V-ing form
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?
Perfect	V-ing perfect
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
mightn't I concentrate? mightn't you concentrate? mightn't he concentrate? mightn't we concentrate? mightn't you concentrate? mightn't they concentrate?	mightn't I be concentrating? mightn't you be concentrating? mightn't he be concentrating? mightn't we be concentrating? mightn't you be concentrating? mightn't they be concentrating?
Perfect	V-ing perfect
mightn't I have concentrated? mightn't you have concentrated? mightn't he have concentrated? mightn't we have concentrated? mightn't you have concentrated? mightn't they have concentrated?	mightn't I have been concentrating? mightn't you have been concentrating? mightn't he have been concentrating? mightn't we have been concentrating? mightn't you have been concentrating? mightn't they have been concentrating?