could defile
Regular verb: defile - defiled- defiled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could defile
you could defile
she could defile
we could defile
you could defile
they could defile 	I could be defiling
you could be defiling
she could be defiling
we could be defiling
you could be defiling
they could be defiling	I could have defiled
you could have defiled
she 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
she 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 couldn't defile
you couldn't defile
she couldn't defile
we couldn't defile
you couldn't defile
they couldn't defile 	I couldn't be defiling
you couldn't be defiling
she couldn't be defiling
we couldn't be defiling
you couldn't be defiling
they couldn't be defiling	I couldn't have defiled
you couldn't have defiled
she couldn't have defiled
we couldn't have defiled
you couldn't have defiled
they couldn't have defiled	I couldn't have been defiling
you couldn't have been defiling
she couldn't have been defiling
we couldn't have been defiling
you couldn't have been defiling
they couldn't have been defiling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I defile?
could you defile?
could she defile?
could we defile?
could you defile?
could they defile? 	could I be defiling?
could you be defiling?
could she be defiling?
could we be defiling?
could you be defiling?
could they be defiling? 	could I have defiled?
could you have defiled?
could she 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 she 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 	
couldn't I defile?
couldn't you defile?
couldn't she defile?
couldn't we defile?
couldn't you defile?
couldn't they defile? 	couldn't I be defiling?
couldn't you be defiling?
couldn't she be defiling?
couldn't we be defiling?
couldn't you be defiling?
couldn't they be defiling? 	couldn't I have defiled?
couldn't you have defiled?
couldn't she have defiled?
couldn't we have defiled?
couldn't you have defiled?
couldn't they have defiled? 	couldn't I have been defiling?
couldn't you have been defiling?
couldn't she have been defiling?
couldn't we have been defiling?
couldn't you have been defiling?
couldn't they have been defiling?