could assent
Regular verb: assent - assented- assented

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could assent
you could assent
she could assent
we could assent
you could assent
they could assent 	I could be assenting
you could be assenting
she could be assenting
we could be assenting
you could be assenting
they could be assenting	I could have assented
you could have assented
she could have assented
we could have assented
you could have assented
they could have assented	I could have been assenting
you could have been assenting
she could have been assenting
we could have been assenting
you could have been assenting
they could have been assenting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not assent
you could not assent
she could not assent
we could not assent
you could not assent
they could not assent 	I could not be assenting
you could not be assenting
she could not be assenting
we could not be assenting
you could not be assenting
they could not be assenting	I could not have assented
you could not have assented
she could not have assented
we could not have assented
you could not have assented
they could not have assented	I could not have been assenting
you could not have been assenting
she could not have been assenting
we could not have been assenting
you could not have been assenting
they could not have been assenting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I assent?
could you assent?
could she assent?
could we assent?
could you assent?
could they assent? 	could I be assenting?
could you be assenting?
could she be assenting?
could we be assenting?
could you be assenting?
could they be assenting? 	could I have assented?
could you have assented?
could she have assented?
could we have assented?
could you have assented?
could they have assented? 	could I have been assenting?
could you have been assenting?
could she have been assenting?
could we have been assenting?
could you have been assenting?
could they have been assenting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not assent?
could you not assent?
could she not assent?
could we not assent?
could you not assent?
could they not assent? 	could I not be assenting?
could you not be assenting?
could she not be assenting?
could we not be assenting?
could you not be assenting?
could they not be assenting? 	could I not have assented?
could you not have assented?
could she not have assented?
could we not have assented?
could you not have assented?
could they not have assented? 	could I not have been assenting?
could you not have been assenting?
could she not have been assenting?
could we not have been assenting?
could you not have been assenting?
could they not have been assenting?