could corrade
Regular verb: corrade - corraded- corraded

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could corrade
you could corrade
she could corrade
we could corrade
you could corrade
they could corrade 	I could be corrading
you could be corrading
she could be corrading
we could be corrading
you could be corrading
they could be corrading	I could have corraded
you could have corraded
she could have corraded
we could have corraded
you could have corraded
they could have corraded	I could have been corrading
you could have been corrading
she could have been corrading
we could have been corrading
you could have been corrading
they could have been corrading	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not corrade
you could not corrade
she could not corrade
we could not corrade
you could not corrade
they could not corrade 	I could not be corrading
you could not be corrading
she could not be corrading
we could not be corrading
you could not be corrading
they could not be corrading	I could not have corraded
you could not have corraded
she could not have corraded
we could not have corraded
you could not have corraded
they could not have corraded	I could not have been corrading
you could not have been corrading
she could not have been corrading
we could not have been corrading
you could not have been corrading
they could not have been corrading	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I corrade?
could you corrade?
could she corrade?
could we corrade?
could you corrade?
could they corrade? 	could I be corrading?
could you be corrading?
could she be corrading?
could we be corrading?
could you be corrading?
could they be corrading? 	could I have corraded?
could you have corraded?
could she have corraded?
could we have corraded?
could you have corraded?
could they have corraded? 	could I have been corrading?
could you have been corrading?
could she have been corrading?
could we have been corrading?
could you have been corrading?
could they have been corrading? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not corrade?
could you not corrade?
could she not corrade?
could we not corrade?
could you not corrade?
could they not corrade? 	could I not be corrading?
could you not be corrading?
could she not be corrading?
could we not be corrading?
could you not be corrading?
could they not be corrading? 	could I not have corraded?
could you not have corraded?
could she not have corraded?
could we not have corraded?
could you not have corraded?
could they not have corraded? 	could I not have been corrading?
could you not have been corrading?
could she not have been corrading?
could we not have been corrading?
could you not have been corrading?
could they not have been corrading?