must portion
Verbo regular: portion - portioned- portioned

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must portion
you must portion
he must portion
we must portion
you must portion
they must portion 	I must be portioning
you must be portioning
he must be portioning
we must be portioning
you must be portioning
they must be portioning	I must have portioned
you must have portioned
he must have portioned
we must have portioned
you must have portioned
they must have portioned	I must have been portioning
you must have been portioning
he must have been portioning
we must have been portioning
you must have been portioning
they must have been portioning	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't portion
you mustn't portion
he mustn't portion
we mustn't portion
you mustn't portion
they mustn't portion 	I mustn't be portioning
you mustn't be portioning
he mustn't be portioning
we mustn't be portioning
you mustn't be portioning
they mustn't be portioning	I mustn't have portioned
you mustn't have portioned
he mustn't have portioned
we mustn't have portioned
you mustn't have portioned
they mustn't have portioned	I mustn't have been portioning
you mustn't have been portioning
he mustn't have been portioning
we mustn't have been portioning
you mustn't have been portioning
they mustn't have been portioning	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I portion?
must you portion?
must he portion?
must we portion?
must you portion?
must they portion? 	must I be portioning?
must you be portioning?
must he be portioning?
must we be portioning?
must you be portioning?
must they be portioning? 	must I have portioned?
must you have portioned?
must he have portioned?
must we have portioned?
must you have portioned?
must they have portioned? 	must I have been portioning?
must you have been portioning?
must he have been portioning?
must we have been portioning?
must you have been portioning?
must they have been portioning? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I portion?
mustn't you portion?
mustn't he portion?
mustn't we portion?
mustn't you portion?
mustn't they portion? 	mustn't I be portioning?
mustn't you be portioning?
mustn't he be portioning?
mustn't we be portioning?
mustn't you be portioning?
mustn't they be portioning? 	mustn't I have portioned?
mustn't you have portioned?
mustn't he have portioned?
mustn't we have portioned?
mustn't you have portioned?
mustn't they have portioned? 	mustn't I have been portioning?
mustn't you have been portioning?
mustn't he have been portioning?
mustn't we have been portioning?
mustn't you have been portioning?
mustn't they have been portioning?