could coruscate
Regular verb: coruscate - coruscated- coruscated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could coruscate
you could coruscate
he could coruscate
we could coruscate
you could coruscate
they could coruscate 	I could be coruscating
you could be coruscating
he could be coruscating
we could be coruscating
you could be coruscating
they could be coruscating	I could have coruscated
you could have coruscated
he could have coruscated
we could have coruscated
you could have coruscated
they could have coruscated	I could have been coruscating
you could have been coruscating
he could have been coruscating
we could have been coruscating
you could have been coruscating
they could have been coruscating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not coruscate
you could not coruscate
he could not coruscate
we could not coruscate
you could not coruscate
they could not coruscate 	I could not be coruscating
you could not be coruscating
he could not be coruscating
we could not be coruscating
you could not be coruscating
they could not be coruscating	I could not have coruscated
you could not have coruscated
he could not have coruscated
we could not have coruscated
you could not have coruscated
they could not have coruscated	I could not have been coruscating
you could not have been coruscating
he could not have been coruscating
we could not have been coruscating
you could not have been coruscating
they could not have been coruscating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I coruscate?
could you coruscate?
could he coruscate?
could we coruscate?
could you coruscate?
could they coruscate? 	could I be coruscating?
could you be coruscating?
could he be coruscating?
could we be coruscating?
could you be coruscating?
could they be coruscating? 	could I have coruscated?
could you have coruscated?
could he have coruscated?
could we have coruscated?
could you have coruscated?
could they have coruscated? 	could I have been coruscating?
could you have been coruscating?
could he have been coruscating?
could we have been coruscating?
could you have been coruscating?
could they have been coruscating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not coruscate?
could you not coruscate?
could he not coruscate?
could we not coruscate?
could you not coruscate?
could they not coruscate? 	could I not be coruscating?
could you not be coruscating?
could he not be coruscating?
could we not be coruscating?
could you not be coruscating?
could they not be coruscating? 	could I not have coruscated?
could you not have coruscated?
could he not have coruscated?
could we not have coruscated?
could you not have coruscated?
could they not have coruscated? 	could I not have been coruscating?
could you not have been coruscating?
could he not have been coruscating?
could we not have been coruscating?
could you not have been coruscating?
could they not have been coruscating?