will yack
Regular verb: yack - yacked- yacked

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

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I won't yack
you won't yack
he won't yack
we won't yack
you won't yack
they won't yack 	I won't be yacking
you won't be yacking
he won't be yacking
we won't be yacking
you won't be yacking
they won't be yacking	I won't have yacked
you won't have yacked
he won't have yacked
we won't have yacked
you won't have yacked
they won't have yacked	I won't have been yacking
you won't have been yacking
he won't have been yacking
we won't have been yacking
you won't have been yacking
they won't have been yacking	

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

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