must hum
Verbo regular: hum - humed- humed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must hum
you must hum
he must hum
we must hum
you must hum
they must hum 	I must be huming
you must be huming
he must be huming
we must be huming
you must be huming
they must be huming	I must have humed
you must have humed
he must have humed
we must have humed
you must have humed
they must have humed	I must have been huming
you must have been huming
he must have been huming
we must have been huming
you must have been huming
they must have been huming	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't hum
you mustn't hum
he mustn't hum
we mustn't hum
you mustn't hum
they mustn't hum 	I mustn't be huming
you mustn't be huming
he mustn't be huming
we mustn't be huming
you mustn't be huming
they mustn't be huming	I mustn't have humed
you mustn't have humed
he mustn't have humed
we mustn't have humed
you mustn't have humed
they mustn't have humed	I mustn't have been huming
you mustn't have been huming
he mustn't have been huming
we mustn't have been huming
you mustn't have been huming
they mustn't have been huming	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I hum?
must you hum?
must he hum?
must we hum?
must you hum?
must they hum? 	must I be huming?
must you be huming?
must he be huming?
must we be huming?
must you be huming?
must they be huming? 	must I have humed?
must you have humed?
must he have humed?
must we have humed?
must you have humed?
must they have humed? 	must I have been huming?
must you have been huming?
must he have been huming?
must we have been huming?
must you have been huming?
must they have been huming? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I hum?
mustn't you hum?
mustn't he hum?
mustn't we hum?
mustn't you hum?
mustn't they hum? 	mustn't I be huming?
mustn't you be huming?
mustn't he be huming?
mustn't we be huming?
mustn't you be huming?
mustn't they be huming? 	mustn't I have humed?
mustn't you have humed?
mustn't he have humed?
mustn't we have humed?
mustn't you have humed?
mustn't they have humed? 	mustn't I have been huming?
mustn't you have been huming?
mustn't he have been huming?
mustn't we have been huming?
mustn't you have been huming?
mustn't they have been huming?