must retail
Verbo regular: retail - retailed- retailed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must retail
you must retail
he must retail
we must retail
you must retail
they must retail 	I must be retailing
you must be retailing
he must be retailing
we must be retailing
you must be retailing
they must be retailing	I must have retailed
you must have retailed
he must have retailed
we must have retailed
you must have retailed
they must have retailed	I must have been retailing
you must have been retailing
he must have been retailing
we must have been retailing
you must have been retailing
they must have been retailing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't retail
you mustn't retail
he mustn't retail
we mustn't retail
you mustn't retail
they mustn't retail 	I mustn't be retailing
you mustn't be retailing
he mustn't be retailing
we mustn't be retailing
you mustn't be retailing
they mustn't be retailing	I mustn't have retailed
you mustn't have retailed
he mustn't have retailed
we mustn't have retailed
you mustn't have retailed
they mustn't have retailed	I mustn't have been retailing
you mustn't have been retailing
he mustn't have been retailing
we mustn't have been retailing
you mustn't have been retailing
they mustn't have been retailing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I retail?
must you retail?
must he retail?
must we retail?
must you retail?
must they retail? 	must I be retailing?
must you be retailing?
must he be retailing?
must we be retailing?
must you be retailing?
must they be retailing? 	must I have retailed?
must you have retailed?
must he have retailed?
must we have retailed?
must you have retailed?
must they have retailed? 	must I have been retailing?
must you have been retailing?
must he have been retailing?
must we have been retailing?
must you have been retailing?
must they have been retailing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I retail?
mustn't you retail?
mustn't he retail?
mustn't we retail?
mustn't you retail?
mustn't they retail? 	mustn't I be retailing?
mustn't you be retailing?
mustn't he be retailing?
mustn't we be retailing?
mustn't you be retailing?
mustn't they be retailing? 	mustn't I have retailed?
mustn't you have retailed?
mustn't he have retailed?
mustn't we have retailed?
mustn't you have retailed?
mustn't they have retailed? 	mustn't I have been retailing?
mustn't you have been retailing?
mustn't he have been retailing?
mustn't we have been retailing?
mustn't you have been retailing?
mustn't they have been retailing?