must supervene
Regular verb: supervene - supervened- supervened

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must supervene
you must supervene
she must supervene
we must supervene
you must supervene
they must supervene 	I must be supervening
you must be supervening
she must be supervening
we must be supervening
you must be supervening
they must be supervening	I must have supervened
you must have supervened
she must have supervened
we must have supervened
you must have supervened
they must have supervened	I must have been supervening
you must have been supervening
she must have been supervening
we must have been supervening
you must have been supervening
they must have been supervening	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not supervene
you must not supervene
she must not supervene
we must not supervene
you must not supervene
they must not supervene 	I must not be supervening
you must not be supervening
she must not be supervening
we must not be supervening
you must not be supervening
they must not be supervening	I must not have supervened
you must not have supervened
she must not have supervened
we must not have supervened
you must not have supervened
they must not have supervened	I must not have been supervening
you must not have been supervening
she must not have been supervening
we must not have been supervening
you must not have been supervening
they must not have been supervening	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I supervene?
must you supervene?
must she supervene?
must we supervene?
must you supervene?
must they supervene? 	must I be supervening?
must you be supervening?
must she be supervening?
must we be supervening?
must you be supervening?
must they be supervening? 	must I have supervened?
must you have supervened?
must she have supervened?
must we have supervened?
must you have supervened?
must they have supervened? 	must I have been supervening?
must you have been supervening?
must she have been supervening?
must we have been supervening?
must you have been supervening?
must they have been supervening? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not supervene?
must you not supervene?
must she not supervene?
must we not supervene?
must you not supervene?
must they not supervene? 	must I not be supervening?
must you not be supervening?
must she not be supervening?
must we not be supervening?
must you not be supervening?
must they not be supervening? 	must I not have supervened?
must you not have supervened?
must she not have supervened?
must we not have supervened?
must you not have supervened?
must they not have supervened? 	must I not have been supervening?
must you not have been supervening?
must she not have been supervening?
must we not have been supervening?
must you not have been supervening?
must they not have been supervening?