must coruscate
Regular verb: coruscate - coruscated- coruscated

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

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

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

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