must loiter
Regular verb: loiter - loitered- loitered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must loiter
you must loiter
she must loiter
we must loiter
you must loiter
they must loiter 	I must be loitering
you must be loitering
she must be loitering
we must be loitering
you must be loitering
they must be loitering	I must have loitered
you must have loitered
she must have loitered
we must have loitered
you must have loitered
they must have loitered	I must have been loitering
you must have been loitering
she must have been loitering
we must have been loitering
you must have been loitering
they must have been loitering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't loiter
you mustn't loiter
she mustn't loiter
we mustn't loiter
you mustn't loiter
they mustn't loiter 	I mustn't be loitering
you mustn't be loitering
she mustn't be loitering
we mustn't be loitering
you mustn't be loitering
they mustn't be loitering	I mustn't have loitered
you mustn't have loitered
she mustn't have loitered
we mustn't have loitered
you mustn't have loitered
they mustn't have loitered	I mustn't have been loitering
you mustn't have been loitering
she mustn't have been loitering
we mustn't have been loitering
you mustn't have been loitering
they mustn't have been loitering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I loiter?
must you loiter?
must she loiter?
must we loiter?
must you loiter?
must they loiter? 	must I be loitering?
must you be loitering?
must she be loitering?
must we be loitering?
must you be loitering?
must they be loitering? 	must I have loitered?
must you have loitered?
must she have loitered?
must we have loitered?
must you have loitered?
must they have loitered? 	must I have been loitering?
must you have been loitering?
must she have been loitering?
must we have been loitering?
must you have been loitering?
must they have been loitering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I loiter?
mustn't you loiter?
mustn't she loiter?
mustn't we loiter?
mustn't you loiter?
mustn't they loiter? 	mustn't I be loitering?
mustn't you be loitering?
mustn't she be loitering?
mustn't we be loitering?
mustn't you be loitering?
mustn't they be loitering? 	mustn't I have loitered?
mustn't you have loitered?
mustn't she have loitered?
mustn't we have loitered?
mustn't you have loitered?
mustn't they have loitered? 	mustn't I have been loitering?
mustn't you have been loitering?
mustn't she have been loitering?
mustn't we have been loitering?
mustn't you have been loitering?
mustn't they have been loitering?