must while
Verbo regular: while - whiled- whiled

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must while
you must while
he must while
we must while
you must while
they must while 	I must be whiling
you must be whiling
he must be whiling
we must be whiling
you must be whiling
they must be whiling	I must have whiled
you must have whiled
he must have whiled
we must have whiled
you must have whiled
they must have whiled	I must have been whiling
you must have been whiling
he must have been whiling
we must have been whiling
you must have been whiling
they must have been whiling	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't while
you mustn't while
he mustn't while
we mustn't while
you mustn't while
they mustn't while 	I mustn't be whiling
you mustn't be whiling
he mustn't be whiling
we mustn't be whiling
you mustn't be whiling
they mustn't be whiling	I mustn't have whiled
you mustn't have whiled
he mustn't have whiled
we mustn't have whiled
you mustn't have whiled
they mustn't have whiled	I mustn't have been whiling
you mustn't have been whiling
he mustn't have been whiling
we mustn't have been whiling
you mustn't have been whiling
they mustn't have been whiling	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I while?
must you while?
must he while?
must we while?
must you while?
must they while? 	must I be whiling?
must you be whiling?
must he be whiling?
must we be whiling?
must you be whiling?
must they be whiling? 	must I have whiled?
must you have whiled?
must he have whiled?
must we have whiled?
must you have whiled?
must they have whiled? 	must I have been whiling?
must you have been whiling?
must he have been whiling?
must we have been whiling?
must you have been whiling?
must they have been whiling? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I while?
mustn't you while?
mustn't he while?
mustn't we while?
mustn't you while?
mustn't they while? 	mustn't I be whiling?
mustn't you be whiling?
mustn't he be whiling?
mustn't we be whiling?
mustn't you be whiling?
mustn't they be whiling? 	mustn't I have whiled?
mustn't you have whiled?
mustn't he have whiled?
mustn't we have whiled?
mustn't you have whiled?
mustn't they have whiled? 	mustn't I have been whiling?
mustn't you have been whiling?
mustn't he have been whiling?
mustn't we have been whiling?
mustn't you have been whiling?
mustn't they have been whiling?