must perfume
Regular verb: perfume - perfumed- perfumed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must perfume
you must perfume
she must perfume
we must perfume
you must perfume
they must perfume 	I must be perfuming
you must be perfuming
she must be perfuming
we must be perfuming
you must be perfuming
they must be perfuming	I must have perfumed
you must have perfumed
she must have perfumed
we must have perfumed
you must have perfumed
they must have perfumed	I must have been perfuming
you must have been perfuming
she must have been perfuming
we must have been perfuming
you must have been perfuming
they must have been perfuming	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not perfume
you must not perfume
she must not perfume
we must not perfume
you must not perfume
they must not perfume 	I must not be perfuming
you must not be perfuming
she must not be perfuming
we must not be perfuming
you must not be perfuming
they must not be perfuming	I must not have perfumed
you must not have perfumed
she must not have perfumed
we must not have perfumed
you must not have perfumed
they must not have perfumed	I must not have been perfuming
you must not have been perfuming
she must not have been perfuming
we must not have been perfuming
you must not have been perfuming
they must not have been perfuming	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I perfume?
must you perfume?
must she perfume?
must we perfume?
must you perfume?
must they perfume? 	must I be perfuming?
must you be perfuming?
must she be perfuming?
must we be perfuming?
must you be perfuming?
must they be perfuming? 	must I have perfumed?
must you have perfumed?
must she have perfumed?
must we have perfumed?
must you have perfumed?
must they have perfumed? 	must I have been perfuming?
must you have been perfuming?
must she have been perfuming?
must we have been perfuming?
must you have been perfuming?
must they have been perfuming? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not perfume?
must you not perfume?
must she not perfume?
must we not perfume?
must you not perfume?
must they not perfume? 	must I not be perfuming?
must you not be perfuming?
must she not be perfuming?
must we not be perfuming?
must you not be perfuming?
must they not be perfuming? 	must I not have perfumed?
must you not have perfumed?
must she not have perfumed?
must we not have perfumed?
must you not have perfumed?
must they not have perfumed? 	must I not have been perfuming?
must you not have been perfuming?
must she not have been perfuming?
must we not have been perfuming?
must you not have been perfuming?
must they not have been perfuming?