could defect
Regular verb: defect - defected- defected

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could defect
you could defect
he could defect
we could defect
you could defect
they could defect 	I could be defecting
you could be defecting
he could be defecting
we could be defecting
you could be defecting
they could be defecting	I could have defected
you could have defected
he could have defected
we could have defected
you could have defected
they could have defected	I could have been defecting
you could have been defecting
he could have been defecting
we could have been defecting
you could have been defecting
they could have been defecting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not defect
you could not defect
he could not defect
we could not defect
you could not defect
they could not defect 	I could not be defecting
you could not be defecting
he could not be defecting
we could not be defecting
you could not be defecting
they could not be defecting	I could not have defected
you could not have defected
he could not have defected
we could not have defected
you could not have defected
they could not have defected	I could not have been defecting
you could not have been defecting
he could not have been defecting
we could not have been defecting
you could not have been defecting
they could not have been defecting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I defect?
could you defect?
could he defect?
could we defect?
could you defect?
could they defect? 	could I be defecting?
could you be defecting?
could he be defecting?
could we be defecting?
could you be defecting?
could they be defecting? 	could I have defected?
could you have defected?
could he have defected?
could we have defected?
could you have defected?
could they have defected? 	could I have been defecting?
could you have been defecting?
could he have been defecting?
could we have been defecting?
could you have been defecting?
could they have been defecting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not defect?
could you not defect?
could he not defect?
could we not defect?
could you not defect?
could they not defect? 	could I not be defecting?
could you not be defecting?
could he not be defecting?
could we not be defecting?
could you not be defecting?
could they not be defecting? 	could I not have defected?
could you not have defected?
could he not have defected?
could we not have defected?
could you not have defected?
could they not have defected? 	could I not have been defecting?
could you not have been defecting?
could he not have been defecting?
could we not have been defecting?
could you not have been defecting?
could they not have been defecting?