must vowelize
Regular verb: vowelize - vowelized- vowelized

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must vowelize
you must vowelize
she must vowelize
we must vowelize
you must vowelize
they must vowelize 	I must be vowelizing
you must be vowelizing
she must be vowelizing
we must be vowelizing
you must be vowelizing
they must be vowelizing	I must have vowelized
you must have vowelized
she must have vowelized
we must have vowelized
you must have vowelized
they must have vowelized	I must have been vowelizing
you must have been vowelizing
she must have been vowelizing
we must have been vowelizing
you must have been vowelizing
they must have been vowelizing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not vowelize
you must not vowelize
she must not vowelize
we must not vowelize
you must not vowelize
they must not vowelize 	I must not be vowelizing
you must not be vowelizing
she must not be vowelizing
we must not be vowelizing
you must not be vowelizing
they must not be vowelizing	I must not have vowelized
you must not have vowelized
she must not have vowelized
we must not have vowelized
you must not have vowelized
they must not have vowelized	I must not have been vowelizing
you must not have been vowelizing
she must not have been vowelizing
we must not have been vowelizing
you must not have been vowelizing
they must not have been vowelizing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I vowelize?
must you vowelize?
must she vowelize?
must we vowelize?
must you vowelize?
must they vowelize? 	must I be vowelizing?
must you be vowelizing?
must she be vowelizing?
must we be vowelizing?
must you be vowelizing?
must they be vowelizing? 	must I have vowelized?
must you have vowelized?
must she have vowelized?
must we have vowelized?
must you have vowelized?
must they have vowelized? 	must I have been vowelizing?
must you have been vowelizing?
must she have been vowelizing?
must we have been vowelizing?
must you have been vowelizing?
must they have been vowelizing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not vowelize?
must you not vowelize?
must she not vowelize?
must we not vowelize?
must you not vowelize?
must they not vowelize? 	must I not be vowelizing?
must you not be vowelizing?
must she not be vowelizing?
must we not be vowelizing?
must you not be vowelizing?
must they not be vowelizing? 	must I not have vowelized?
must you not have vowelized?
must she not have vowelized?
must we not have vowelized?
must you not have vowelized?
must they not have vowelized? 	must I not have been vowelizing?
must you not have been vowelizing?
must she not have been vowelizing?
must we not have been vowelizing?
must you not have been vowelizing?
must they not have been vowelizing?