must prototype
Verbo regular: prototype - prototyped- prototyped

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must prototype
you must prototype
he must prototype
we must prototype
you must prototype
they must prototype 	I must be prototyping
you must be prototyping
he must be prototyping
we must be prototyping
you must be prototyping
they must be prototyping	I must have prototyped
you must have prototyped
he must have prototyped
we must have prototyped
you must have prototyped
they must have prototyped	I must have been prototyping
you must have been prototyping
he must have been prototyping
we must have been prototyping
you must have been prototyping
they must have been prototyping	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't prototype
you mustn't prototype
he mustn't prototype
we mustn't prototype
you mustn't prototype
they mustn't prototype 	I mustn't be prototyping
you mustn't be prototyping
he mustn't be prototyping
we mustn't be prototyping
you mustn't be prototyping
they mustn't be prototyping	I mustn't have prototyped
you mustn't have prototyped
he mustn't have prototyped
we mustn't have prototyped
you mustn't have prototyped
they mustn't have prototyped	I mustn't have been prototyping
you mustn't have been prototyping
he mustn't have been prototyping
we mustn't have been prototyping
you mustn't have been prototyping
they mustn't have been prototyping	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I prototype?
must you prototype?
must he prototype?
must we prototype?
must you prototype?
must they prototype? 	must I be prototyping?
must you be prototyping?
must he be prototyping?
must we be prototyping?
must you be prototyping?
must they be prototyping? 	must I have prototyped?
must you have prototyped?
must he have prototyped?
must we have prototyped?
must you have prototyped?
must they have prototyped? 	must I have been prototyping?
must you have been prototyping?
must he have been prototyping?
must we have been prototyping?
must you have been prototyping?
must they have been prototyping? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I prototype?
mustn't you prototype?
mustn't he prototype?
mustn't we prototype?
mustn't you prototype?
mustn't they prototype? 	mustn't I be prototyping?
mustn't you be prototyping?
mustn't he be prototyping?
mustn't we be prototyping?
mustn't you be prototyping?
mustn't they be prototyping? 	mustn't I have prototyped?
mustn't you have prototyped?
mustn't he have prototyped?
mustn't we have prototyped?
mustn't you have prototyped?
mustn't they have prototyped? 	mustn't I have been prototyping?
mustn't you have been prototyping?
mustn't he have been prototyping?
mustn't we have been prototyping?
mustn't you have been prototyping?
mustn't they have been prototyping?