must prototype
Verbe régulier : prototype - prototyped- prototyped

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must prototype
you must prototype
she must prototype
we must prototype
you must prototype
they must prototype 	I must be prototyping
you must be prototyping
she must be prototyping
we must be prototyping
you must be prototyping
they must be prototyping	I must have prototyped
you must have prototyped
she 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
she must have been prototyping
we must have been prototyping
you must have been prototyping
they must have been prototyping	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not prototype
you must not prototype
she must not prototype
we must not prototype
you must not prototype
they must not prototype 	I must not be prototyping
you must not be prototyping
she must not be prototyping
we must not be prototyping
you must not be prototyping
they must not be prototyping	I must not have prototyped
you must not have prototyped
she must not have prototyped
we must not have prototyped
you must not have prototyped
they must not have prototyped	I must not have been prototyping
you must not have been prototyping
she must not have been prototyping
we must not have been prototyping
you must not have been prototyping
they must not have been prototyping	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I prototype?
must you prototype?
must she prototype?
must we prototype?
must you prototype?
must they prototype? 	must I be prototyping?
must you be prototyping?
must she be prototyping?
must we be prototyping?
must you be prototyping?
must they be prototyping? 	must I have prototyped?
must you have prototyped?
must she 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 she have been prototyping?
must we have been prototyping?
must you have been prototyping?
must they have been prototyping? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not prototype?
must you not prototype?
must she not prototype?
must we not prototype?
must you not prototype?
must they not prototype? 	must I not be prototyping?
must you not be prototyping?
must she not be prototyping?
must we not be prototyping?
must you not be prototyping?
must they not be prototyping? 	must I not have prototyped?
must you not have prototyped?
must she not have prototyped?
must we not have prototyped?
must you not have prototyped?
must they not have prototyped? 	must I not have been prototyping?
must you not have been prototyping?
must she not have been prototyping?
must we not have been prototyping?
must you not have been prototyping?
must they not have been prototyping?