English verb conjugation
MUST PROTOTYPE

Regular verb: prototype - prototyped - prototyped

Affirmation

Simple form	V-ing form
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
Perfect	V-ing perfect
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

Negation

Simple form	V-ing form
I must not prototype you must not prototype he 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 he must not be prototyping we must not be prototyping you must not be prototyping they must not be prototyping
Perfect	V-ing perfect
I must not have prototyped you must not have prototyped he 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 he must not have been prototyping we must not have been prototyping you must not have been prototyping they must not have been prototyping

Interrogative form

Simple form	V-ing form
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?
Perfect	V-ing perfect
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?

Interro-negative form

Simple form	V-ing form
must I not prototype? must you not prototype? must he 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 he not be prototyping? must we not be prototyping? must you not be prototyping? must they not be prototyping?
Perfect	V-ing perfect
must I not have prototyped? must you not have prototyped? must he 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 he not have been prototyping? must we not have been prototyping? must you not have been prototyping? must they not have been prototyping?