must lift
Verbo regular: lift - lifted- lifted

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must lift
you must lift
he must lift
we must lift
you must lift
they must lift 	I must be lifting
you must be lifting
he must be lifting
we must be lifting
you must be lifting
they must be lifting	I must have lifted
you must have lifted
he must have lifted
we must have lifted
you must have lifted
they must have lifted	I must have been lifting
you must have been lifting
he must have been lifting
we must have been lifting
you must have been lifting
they must have been lifting	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't lift
you mustn't lift
he mustn't lift
we mustn't lift
you mustn't lift
they mustn't lift 	I mustn't be lifting
you mustn't be lifting
he mustn't be lifting
we mustn't be lifting
you mustn't be lifting
they mustn't be lifting	I mustn't have lifted
you mustn't have lifted
he mustn't have lifted
we mustn't have lifted
you mustn't have lifted
they mustn't have lifted	I mustn't have been lifting
you mustn't have been lifting
he mustn't have been lifting
we mustn't have been lifting
you mustn't have been lifting
they mustn't have been lifting	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I lift?
must you lift?
must he lift?
must we lift?
must you lift?
must they lift? 	must I be lifting?
must you be lifting?
must he be lifting?
must we be lifting?
must you be lifting?
must they be lifting? 	must I have lifted?
must you have lifted?
must he have lifted?
must we have lifted?
must you have lifted?
must they have lifted? 	must I have been lifting?
must you have been lifting?
must he have been lifting?
must we have been lifting?
must you have been lifting?
must they have been lifting? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I lift?
mustn't you lift?
mustn't he lift?
mustn't we lift?
mustn't you lift?
mustn't they lift? 	mustn't I be lifting?
mustn't you be lifting?
mustn't he be lifting?
mustn't we be lifting?
mustn't you be lifting?
mustn't they be lifting? 	mustn't I have lifted?
mustn't you have lifted?
mustn't he have lifted?
mustn't we have lifted?
mustn't you have lifted?
mustn't they have lifted? 	mustn't I have been lifting?
mustn't you have been lifting?
mustn't he have been lifting?
mustn't we have been lifting?
mustn't you have been lifting?
mustn't they have been lifting?