can retract
Regular verb: retract - retracted- retracted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can retract
you can retract
he can retract
we can retract
you can retract
they can retract 	I can be retracting
you can be retracting
he can be retracting
we can be retracting
you can be retracting
they can be retracting	I can have retracted
you can have retracted
he can have retracted
we can have retracted
you can have retracted
they can have retracted	I can have been retracting
you can have been retracting
he can have been retracting
we can have been retracting
you can have been retracting
they can have been retracting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't retract
you can't retract
he can't retract
we can't retract
you can't retract
they can't retract 	I can't be retracting
you can't be retracting
he can't be retracting
we can't be retracting
you can't be retracting
they can't be retracting	I can't have retracted
you can't have retracted
he can't have retracted
we can't have retracted
you can't have retracted
they can't have retracted	I can't have been retracting
you can't have been retracting
he can't have been retracting
we can't have been retracting
you can't have been retracting
they can't have been retracting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I retract?
can you retract?
can he retract?
can we retract?
can you retract?
can they retract? 	can I be retracting?
can you be retracting?
can he be retracting?
can we be retracting?
can you be retracting?
can they be retracting? 	can I have retracted?
can you have retracted?
can he have retracted?
can we have retracted?
can you have retracted?
can they have retracted? 	can I have been retracting?
can you have been retracting?
can he have been retracting?
can we have been retracting?
can you have been retracting?
can they have been retracting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I retract?
can't you retract?
can't he retract?
can't we retract?
can't you retract?
can't they retract? 	can't I be retracting?
can't you be retracting?
can't he be retracting?
can't we be retracting?
can't you be retracting?
can't they be retracting? 	can't I have retracted?
can't you have retracted?
can't he have retracted?
can't we have retracted?
can't you have retracted?
can't they have retracted? 	can't I have been retracting?
can't you have been retracting?
can't he have been retracting?
can't we have been retracting?
can't you have been retracting?
can't they have been retracting?