must witter
Regular verb: witter - wittered- wittered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must witter
you must witter
he must witter
we must witter
you must witter
they must witter 	I must be wittering
you must be wittering
he must be wittering
we must be wittering
you must be wittering
they must be wittering	I must have wittered
you must have wittered
he must have wittered
we must have wittered
you must have wittered
they must have wittered	I must have been wittering
you must have been wittering
he must have been wittering
we must have been wittering
you must have been wittering
they must have been wittering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't witter
you mustn't witter
he mustn't witter
we mustn't witter
you mustn't witter
they mustn't witter 	I mustn't be wittering
you mustn't be wittering
he mustn't be wittering
we mustn't be wittering
you mustn't be wittering
they mustn't be wittering	I mustn't have wittered
you mustn't have wittered
he mustn't have wittered
we mustn't have wittered
you mustn't have wittered
they mustn't have wittered	I mustn't have been wittering
you mustn't have been wittering
he mustn't have been wittering
we mustn't have been wittering
you mustn't have been wittering
they mustn't have been wittering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I witter?
must you witter?
must he witter?
must we witter?
must you witter?
must they witter? 	must I be wittering?
must you be wittering?
must he be wittering?
must we be wittering?
must you be wittering?
must they be wittering? 	must I have wittered?
must you have wittered?
must he have wittered?
must we have wittered?
must you have wittered?
must they have wittered? 	must I have been wittering?
must you have been wittering?
must he have been wittering?
must we have been wittering?
must you have been wittering?
must they have been wittering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I witter?
mustn't you witter?
mustn't he witter?
mustn't we witter?
mustn't you witter?
mustn't they witter? 	mustn't I be wittering?
mustn't you be wittering?
mustn't he be wittering?
mustn't we be wittering?
mustn't you be wittering?
mustn't they be wittering? 	mustn't I have wittered?
mustn't you have wittered?
mustn't he have wittered?
mustn't we have wittered?
mustn't you have wittered?
mustn't they have wittered? 	mustn't I have been wittering?
mustn't you have been wittering?
mustn't he have been wittering?
mustn't we have been wittering?
mustn't you have been wittering?
mustn't they have been wittering?