might lack
Regular verb: lack - lacked- lacked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I might lack
you might lack
she might lack
we might lack
you might lack
they might lack 	I might be lacking
you might be lacking
she might be lacking
we might be lacking
you might be lacking
they might be lacking	I might have lacked
you might have lacked
she might have lacked
we might have lacked
you might have lacked
they might have lacked	I might have been lacking
you might have been lacking
she might have been lacking
we might have been lacking
you might have been lacking
they might have been lacking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mightn't lack
you mightn't lack
she mightn't lack
we mightn't lack
you mightn't lack
they mightn't lack 	I mightn't be lacking
you mightn't be lacking
she mightn't be lacking
we mightn't be lacking
you mightn't be lacking
they mightn't be lacking	I mightn't have lacked
you mightn't have lacked
she mightn't have lacked
we mightn't have lacked
you mightn't have lacked
they mightn't have lacked	I mightn't have been lacking
you mightn't have been lacking
she mightn't have been lacking
we mightn't have been lacking
you mightn't have been lacking
they mightn't have been lacking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
might I lack?
might you lack?
might she lack?
might we lack?
might you lack?
might they lack? 	might I be lacking?
might you be lacking?
might she be lacking?
might we be lacking?
might you be lacking?
might they be lacking? 	might I have lacked?
might you have lacked?
might she have lacked?
might we have lacked?
might you have lacked?
might they have lacked? 	might I have been lacking?
might you have been lacking?
might she have been lacking?
might we have been lacking?
might you have been lacking?
might they have been lacking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mightn't I lack?
mightn't you lack?
mightn't she lack?
mightn't we lack?
mightn't you lack?
mightn't they lack? 	mightn't I be lacking?
mightn't you be lacking?
mightn't she be lacking?
mightn't we be lacking?
mightn't you be lacking?
mightn't they be lacking? 	mightn't I have lacked?
mightn't you have lacked?
mightn't she have lacked?
mightn't we have lacked?
mightn't you have lacked?
mightn't they have lacked? 	mightn't I have been lacking?
mightn't you have been lacking?
mightn't she have been lacking?
mightn't we have been lacking?
mightn't you have been lacking?
mightn't they have been lacking?