could disdain
Regular verb: disdain - disdained- disdained

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could disdain
you could disdain
he could disdain
we could disdain
you could disdain
they could disdain 	I could be disdaining
you could be disdaining
he could be disdaining
we could be disdaining
you could be disdaining
they could be disdaining	I could have disdained
you could have disdained
he could have disdained
we could have disdained
you could have disdained
they could have disdained	I could have been disdaining
you could have been disdaining
he could have been disdaining
we could have been disdaining
you could have been disdaining
they could have been disdaining	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not disdain
you could not disdain
he could not disdain
we could not disdain
you could not disdain
they could not disdain 	I could not be disdaining
you could not be disdaining
he could not be disdaining
we could not be disdaining
you could not be disdaining
they could not be disdaining	I could not have disdained
you could not have disdained
he could not have disdained
we could not have disdained
you could not have disdained
they could not have disdained	I could not have been disdaining
you could not have been disdaining
he could not have been disdaining
we could not have been disdaining
you could not have been disdaining
they could not have been disdaining	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I disdain?
could you disdain?
could he disdain?
could we disdain?
could you disdain?
could they disdain? 	could I be disdaining?
could you be disdaining?
could he be disdaining?
could we be disdaining?
could you be disdaining?
could they be disdaining? 	could I have disdained?
could you have disdained?
could he have disdained?
could we have disdained?
could you have disdained?
could they have disdained? 	could I have been disdaining?
could you have been disdaining?
could he have been disdaining?
could we have been disdaining?
could you have been disdaining?
could they have been disdaining? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not disdain?
could you not disdain?
could he not disdain?
could we not disdain?
could you not disdain?
could they not disdain? 	could I not be disdaining?
could you not be disdaining?
could he not be disdaining?
could we not be disdaining?
could you not be disdaining?
could they not be disdaining? 	could I not have disdained?
could you not have disdained?
could he not have disdained?
could we not have disdained?
could you not have disdained?
could they not have disdained? 	could I not have been disdaining?
could you not have been disdaining?
could he not have been disdaining?
could we not have been disdaining?
could you not have been disdaining?
could they not have been disdaining?