must totter
Regular verb: totter - tottered- tottered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must totter
you must totter
he must totter
we must totter
you must totter
they must totter 	I must be tottering
you must be tottering
he must be tottering
we must be tottering
you must be tottering
they must be tottering	I must have tottered
you must have tottered
he must have tottered
we must have tottered
you must have tottered
they must have tottered	I must have been tottering
you must have been tottering
he must have been tottering
we must have been tottering
you must have been tottering
they must have been tottering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't totter
you mustn't totter
he mustn't totter
we mustn't totter
you mustn't totter
they mustn't totter 	I mustn't be tottering
you mustn't be tottering
he mustn't be tottering
we mustn't be tottering
you mustn't be tottering
they mustn't be tottering	I mustn't have tottered
you mustn't have tottered
he mustn't have tottered
we mustn't have tottered
you mustn't have tottered
they mustn't have tottered	I mustn't have been tottering
you mustn't have been tottering
he mustn't have been tottering
we mustn't have been tottering
you mustn't have been tottering
they mustn't have been tottering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I totter?
must you totter?
must he totter?
must we totter?
must you totter?
must they totter? 	must I be tottering?
must you be tottering?
must he be tottering?
must we be tottering?
must you be tottering?
must they be tottering? 	must I have tottered?
must you have tottered?
must he have tottered?
must we have tottered?
must you have tottered?
must they have tottered? 	must I have been tottering?
must you have been tottering?
must he have been tottering?
must we have been tottering?
must you have been tottering?
must they have been tottering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I totter?
mustn't you totter?
mustn't he totter?
mustn't we totter?
mustn't you totter?
mustn't they totter? 	mustn't I be tottering?
mustn't you be tottering?
mustn't he be tottering?
mustn't we be tottering?
mustn't you be tottering?
mustn't they be tottering? 	mustn't I have tottered?
mustn't you have tottered?
mustn't he have tottered?
mustn't we have tottered?
mustn't you have tottered?
mustn't they have tottered? 	mustn't I have been tottering?
mustn't you have been tottering?
mustn't he have been tottering?
mustn't we have been tottering?
mustn't you have been tottering?
mustn't they have been tottering?