could defile
Regular verb: defile - defiled- defiled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could defile
you could defile
he could defile
we could defile
you could defile
they could defile 	I could be defiling
you could be defiling
he could be defiling
we could be defiling
you could be defiling
they could be defiling	I could have defiled
you could have defiled
he could have defiled
we could have defiled
you could have defiled
they could have defiled	I could have been defiling
you could have been defiling
he could have been defiling
we could have been defiling
you could have been defiling
they could have been defiling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not defile
you could not defile
he could not defile
we could not defile
you could not defile
they could not defile 	I could not be defiling
you could not be defiling
he could not be defiling
we could not be defiling
you could not be defiling
they could not be defiling	I could not have defiled
you could not have defiled
he could not have defiled
we could not have defiled
you could not have defiled
they could not have defiled	I could not have been defiling
you could not have been defiling
he could not have been defiling
we could not have been defiling
you could not have been defiling
they could not have been defiling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I defile?
could you defile?
could he defile?
could we defile?
could you defile?
could they defile? 	could I be defiling?
could you be defiling?
could he be defiling?
could we be defiling?
could you be defiling?
could they be defiling? 	could I have defiled?
could you have defiled?
could he have defiled?
could we have defiled?
could you have defiled?
could they have defiled? 	could I have been defiling?
could you have been defiling?
could he have been defiling?
could we have been defiling?
could you have been defiling?
could they have been defiling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not defile?
could you not defile?
could he not defile?
could we not defile?
could you not defile?
could they not defile? 	could I not be defiling?
could you not be defiling?
could he not be defiling?
could we not be defiling?
could you not be defiling?
could they not be defiling? 	could I not have defiled?
could you not have defiled?
could he not have defiled?
could we not have defiled?
could you not have defiled?
could they not have defiled? 	could I not have been defiling?
could you not have been defiling?
could he not have been defiling?
could we not have been defiling?
could you not have been defiling?
could they not have been defiling?