must contort
Verbo regular: contort - contorted- contorted

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must contort
you must contort
he must contort
we must contort
you must contort
they must contort 	I must be contorting
you must be contorting
he must be contorting
we must be contorting
you must be contorting
they must be contorting	I must have contorted
you must have contorted
he must have contorted
we must have contorted
you must have contorted
they must have contorted	I must have been contorting
you must have been contorting
he must have been contorting
we must have been contorting
you must have been contorting
they must have been contorting	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't contort
you mustn't contort
he mustn't contort
we mustn't contort
you mustn't contort
they mustn't contort 	I mustn't be contorting
you mustn't be contorting
he mustn't be contorting
we mustn't be contorting
you mustn't be contorting
they mustn't be contorting	I mustn't have contorted
you mustn't have contorted
he mustn't have contorted
we mustn't have contorted
you mustn't have contorted
they mustn't have contorted	I mustn't have been contorting
you mustn't have been contorting
he mustn't have been contorting
we mustn't have been contorting
you mustn't have been contorting
they mustn't have been contorting	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I contort?
must you contort?
must he contort?
must we contort?
must you contort?
must they contort? 	must I be contorting?
must you be contorting?
must he be contorting?
must we be contorting?
must you be contorting?
must they be contorting? 	must I have contorted?
must you have contorted?
must he have contorted?
must we have contorted?
must you have contorted?
must they have contorted? 	must I have been contorting?
must you have been contorting?
must he have been contorting?
must we have been contorting?
must you have been contorting?
must they have been contorting? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I contort?
mustn't you contort?
mustn't he contort?
mustn't we contort?
mustn't you contort?
mustn't they contort? 	mustn't I be contorting?
mustn't you be contorting?
mustn't he be contorting?
mustn't we be contorting?
mustn't you be contorting?
mustn't they be contorting? 	mustn't I have contorted?
mustn't you have contorted?
mustn't he have contorted?
mustn't we have contorted?
mustn't you have contorted?
mustn't they have contorted? 	mustn't I have been contorting?
mustn't you have been contorting?
mustn't he have been contorting?
mustn't we have been contorting?
mustn't you have been contorting?
mustn't they have been contorting?