must welter
Verbo regular: welter - weltered- weltered

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must welter
you must welter
he must welter
we must welter
you must welter
they must welter 	I must be weltering
you must be weltering
he must be weltering
we must be weltering
you must be weltering
they must be weltering	I must have weltered
you must have weltered
he must have weltered
we must have weltered
you must have weltered
they must have weltered	I must have been weltering
you must have been weltering
he must have been weltering
we must have been weltering
you must have been weltering
they must have been weltering	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't welter
you mustn't welter
he mustn't welter
we mustn't welter
you mustn't welter
they mustn't welter 	I mustn't be weltering
you mustn't be weltering
he mustn't be weltering
we mustn't be weltering
you mustn't be weltering
they mustn't be weltering	I mustn't have weltered
you mustn't have weltered
he mustn't have weltered
we mustn't have weltered
you mustn't have weltered
they mustn't have weltered	I mustn't have been weltering
you mustn't have been weltering
he mustn't have been weltering
we mustn't have been weltering
you mustn't have been weltering
they mustn't have been weltering	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I welter?
must you welter?
must he welter?
must we welter?
must you welter?
must they welter? 	must I be weltering?
must you be weltering?
must he be weltering?
must we be weltering?
must you be weltering?
must they be weltering? 	must I have weltered?
must you have weltered?
must he have weltered?
must we have weltered?
must you have weltered?
must they have weltered? 	must I have been weltering?
must you have been weltering?
must he have been weltering?
must we have been weltering?
must you have been weltering?
must they have been weltering? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I welter?
mustn't you welter?
mustn't he welter?
mustn't we welter?
mustn't you welter?
mustn't they welter? 	mustn't I be weltering?
mustn't you be weltering?
mustn't he be weltering?
mustn't we be weltering?
mustn't you be weltering?
mustn't they be weltering? 	mustn't I have weltered?
mustn't you have weltered?
mustn't he have weltered?
mustn't we have weltered?
mustn't you have weltered?
mustn't they have weltered? 	mustn't I have been weltering?
mustn't you have been weltering?
mustn't he have been weltering?
mustn't we have been weltering?
mustn't you have been weltering?
mustn't they have been weltering?