must decree
Verbo regular: decree - decreed- decreed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must decree
you must decree
he must decree
we must decree
you must decree
they must decree 	I must be decreeing
you must be decreeing
he must be decreeing
we must be decreeing
you must be decreeing
they must be decreeing	I must have decreed
you must have decreed
he must have decreed
we must have decreed
you must have decreed
they must have decreed	I must have been decreeing
you must have been decreeing
he must have been decreeing
we must have been decreeing
you must have been decreeing
they must have been decreeing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't decree
you mustn't decree
he mustn't decree
we mustn't decree
you mustn't decree
they mustn't decree 	I mustn't be decreeing
you mustn't be decreeing
he mustn't be decreeing
we mustn't be decreeing
you mustn't be decreeing
they mustn't be decreeing	I mustn't have decreed
you mustn't have decreed
he mustn't have decreed
we mustn't have decreed
you mustn't have decreed
they mustn't have decreed	I mustn't have been decreeing
you mustn't have been decreeing
he mustn't have been decreeing
we mustn't have been decreeing
you mustn't have been decreeing
they mustn't have been decreeing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I decree?
must you decree?
must he decree?
must we decree?
must you decree?
must they decree? 	must I be decreeing?
must you be decreeing?
must he be decreeing?
must we be decreeing?
must you be decreeing?
must they be decreeing? 	must I have decreed?
must you have decreed?
must he have decreed?
must we have decreed?
must you have decreed?
must they have decreed? 	must I have been decreeing?
must you have been decreeing?
must he have been decreeing?
must we have been decreeing?
must you have been decreeing?
must they have been decreeing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I decree?
mustn't you decree?
mustn't he decree?
mustn't we decree?
mustn't you decree?
mustn't they decree? 	mustn't I be decreeing?
mustn't you be decreeing?
mustn't he be decreeing?
mustn't we be decreeing?
mustn't you be decreeing?
mustn't they be decreeing? 	mustn't I have decreed?
mustn't you have decreed?
mustn't he have decreed?
mustn't we have decreed?
mustn't you have decreed?
mustn't they have decreed? 	mustn't I have been decreeing?
mustn't you have been decreeing?
mustn't he have been decreeing?
mustn't we have been decreeing?
mustn't you have been decreeing?
mustn't they have been decreeing?