can exact
Regular verb: exact - exacted- exacted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can exact
you can exact
he can exact
we can exact
you can exact
they can exact 	I can be exacting
you can be exacting
he can be exacting
we can be exacting
you can be exacting
they can be exacting	I can have exacted
you can have exacted
he can have exacted
we can have exacted
you can have exacted
they can have exacted	I can have been exacting
you can have been exacting
he can have been exacting
we can have been exacting
you can have been exacting
they can have been exacting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't exact
you can't exact
he can't exact
we can't exact
you can't exact
they can't exact 	I can't be exacting
you can't be exacting
he can't be exacting
we can't be exacting
you can't be exacting
they can't be exacting	I can't have exacted
you can't have exacted
he can't have exacted
we can't have exacted
you can't have exacted
they can't have exacted	I can't have been exacting
you can't have been exacting
he can't have been exacting
we can't have been exacting
you can't have been exacting
they can't have been exacting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I exact?
can you exact?
can he exact?
can we exact?
can you exact?
can they exact? 	can I be exacting?
can you be exacting?
can he be exacting?
can we be exacting?
can you be exacting?
can they be exacting? 	can I have exacted?
can you have exacted?
can he have exacted?
can we have exacted?
can you have exacted?
can they have exacted? 	can I have been exacting?
can you have been exacting?
can he have been exacting?
can we have been exacting?
can you have been exacting?
can they have been exacting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I exact?
can't you exact?
can't he exact?
can't we exact?
can't you exact?
can't they exact? 	can't I be exacting?
can't you be exacting?
can't he be exacting?
can't we be exacting?
can't you be exacting?
can't they be exacting? 	can't I have exacted?
can't you have exacted?
can't he have exacted?
can't we have exacted?
can't you have exacted?
can't they have exacted? 	can't I have been exacting?
can't you have been exacting?
can't he have been exacting?
can't we have been exacting?
can't you have been exacting?
can't they have been exacting?