could assent
Regular verb: assent - assented- assented

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