must slow
Verbo regular: slow - slowed- slowed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must slow
you must slow
she must slow
we must slow
you must slow
they must slow 	I must be slowing
you must be slowing
she must be slowing
we must be slowing
you must be slowing
they must be slowing	I must have slowed
you must have slowed
she must have slowed
we must have slowed
you must have slowed
they must have slowed	I must have been slowing
you must have been slowing
she must have been slowing
we must have been slowing
you must have been slowing
they must have been slowing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't slow
you mustn't slow
she mustn't slow
we mustn't slow
you mustn't slow
they mustn't slow 	I mustn't be slowing
you mustn't be slowing
she mustn't be slowing
we mustn't be slowing
you mustn't be slowing
they mustn't be slowing	I mustn't have slowed
you mustn't have slowed
she mustn't have slowed
we mustn't have slowed
you mustn't have slowed
they mustn't have slowed	I mustn't have been slowing
you mustn't have been slowing
she mustn't have been slowing
we mustn't have been slowing
you mustn't have been slowing
they mustn't have been slowing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I slow?
must you slow?
must she slow?
must we slow?
must you slow?
must they slow? 	must I be slowing?
must you be slowing?
must she be slowing?
must we be slowing?
must you be slowing?
must they be slowing? 	must I have slowed?
must you have slowed?
must she have slowed?
must we have slowed?
must you have slowed?
must they have slowed? 	must I have been slowing?
must you have been slowing?
must she have been slowing?
must we have been slowing?
must you have been slowing?
must they have been slowing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I slow?
mustn't you slow?
mustn't she slow?
mustn't we slow?
mustn't you slow?
mustn't they slow? 	mustn't I be slowing?
mustn't you be slowing?
mustn't she be slowing?
mustn't we be slowing?
mustn't you be slowing?
mustn't they be slowing? 	mustn't I have slowed?
mustn't you have slowed?
mustn't she have slowed?
mustn't we have slowed?
mustn't you have slowed?
mustn't they have slowed? 	mustn't I have been slowing?
mustn't you have been slowing?
mustn't she have been slowing?
mustn't we have been slowing?
mustn't you have been slowing?
mustn't they have been slowing?