could deny
Regular verb: deny - denied- denied

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could deny
you could deny
she could deny
we could deny
you could deny
they could deny 	I could be denying
you could be denying
she could be denying
we could be denying
you could be denying
they could be denying	I could have denied
you could have denied
she could have denied
we could have denied
you could have denied
they could have denied	I could have been denying
you could have been denying
she could have been denying
we could have been denying
you could have been denying
they could have been denying	

Negation 	
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I could not deny
you could not deny
she could not deny
we could not deny
you could not deny
they could not deny 	I could not be denying
you could not be denying
she could not be denying
we could not be denying
you could not be denying
they could not be denying	I could not have denied
you could not have denied
she could not have denied
we could not have denied
you could not have denied
they could not have denied	I could not have been denying
you could not have been denying
she could not have been denying
we could not have been denying
you could not have been denying
they could not have been denying	

Interrogative form 	
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could I deny?
could you deny?
could she deny?
could we deny?
could you deny?
could they deny? 	could I be denying?
could you be denying?
could she be denying?
could we be denying?
could you be denying?
could they be denying? 	could I have denied?
could you have denied?
could she have denied?
could we have denied?
could you have denied?
could they have denied? 	could I have been denying?
could you have been denying?
could she have been denying?
could we have been denying?
could you have been denying?
could they have been denying? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not deny?
could you not deny?
could she not deny?
could we not deny?
could you not deny?
could they not deny? 	could I not be denying?
could you not be denying?
could she not be denying?
could we not be denying?
could you not be denying?
could they not be denying? 	could I not have denied?
could you not have denied?
could she not have denied?
could we not have denied?
could you not have denied?
could they not have denied? 	could I not have been denying?
could you not have been denying?
could she not have been denying?
could we not have been denying?
could you not have been denying?
could they not have been denying?