might yack
Regular verb: yack - yacked- yacked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I might yack
you might yack
he might yack
we might yack
you might yack
they might yack 	I might be yacking
you might be yacking
he might be yacking
we might be yacking
you might be yacking
they might be yacking	I might have yacked
you might have yacked
he might have yacked
we might have yacked
you might have yacked
they might have yacked	I might have been yacking
you might have been yacking
he might have been yacking
we might have been yacking
you might have been yacking
they might have been yacking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I might not yack
you might not yack
he might not yack
we might not yack
you might not yack
they might not yack 	I might not be yacking
you might not be yacking
he might not be yacking
we might not be yacking
you might not be yacking
they might not be yacking	I might not have yacked
you might not have yacked
he might not have yacked
we might not have yacked
you might not have yacked
they might not have yacked	I might not have been yacking
you might not have been yacking
he might not have been yacking
we might not have been yacking
you might not have been yacking
they might not have been yacking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
might I yack?
might you yack?
might he yack?
might we yack?
might you yack?
might they yack? 	might I be yacking?
might you be yacking?
might he be yacking?
might we be yacking?
might you be yacking?
might they be yacking? 	might I have yacked?
might you have yacked?
might he have yacked?
might we have yacked?
might you have yacked?
might they have yacked? 	might I have been yacking?
might you have been yacking?
might he have been yacking?
might we have been yacking?
might you have been yacking?
might they have been yacking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
might I not yack?
might you not yack?
might he not yack?
might we not yack?
might you not yack?
might they not yack? 	might I not be yacking?
might you not be yacking?
might he not be yacking?
might we not be yacking?
might you not be yacking?
might they not be yacking? 	might I not have yacked?
might you not have yacked?
might he not have yacked?
might we not have yacked?
might you not have yacked?
might they not have yacked? 	might I not have been yacking?
might you not have been yacking?
might he not have been yacking?
might we not have been yacking?
might you not have been yacking?
might they not have been yacking?