English verb conjugation
MUST PIONEER

Regular verb: pioneer - pioneered - pioneered

Affirmation

Simple form	V-ing form
I must pioneer you must pioneer he must pioneer we must pioneer you must pioneer they must pioneer	I must be pioneering you must be pioneering he must be pioneering we must be pioneering you must be pioneering they must be pioneering
Perfect	V-ing perfect
I must have pioneered you must have pioneered he must have pioneered we must have pioneered you must have pioneered they must have pioneered	I must have been pioneering you must have been pioneering he must have been pioneering we must have been pioneering you must have been pioneering they must have been pioneering

Negation

Simple form	V-ing form
I must not pioneer you must not pioneer he must not pioneer we must not pioneer you must not pioneer they must not pioneer	I must not be pioneering you must not be pioneering he must not be pioneering we must not be pioneering you must not be pioneering they must not be pioneering
Perfect	V-ing perfect
I must not have pioneered you must not have pioneered he must not have pioneered we must not have pioneered you must not have pioneered they must not have pioneered	I must not have been pioneering you must not have been pioneering he must not have been pioneering we must not have been pioneering you must not have been pioneering they must not have been pioneering

Interrogative form

Simple form	V-ing form
must I pioneer? must you pioneer? must he pioneer? must we pioneer? must you pioneer? must they pioneer?	must I be pioneering? must you be pioneering? must he be pioneering? must we be pioneering? must you be pioneering? must they be pioneering?
Perfect	V-ing perfect
must I have pioneered? must you have pioneered? must he have pioneered? must we have pioneered? must you have pioneered? must they have pioneered?	must I have been pioneering? must you have been pioneering? must he have been pioneering? must we have been pioneering? must you have been pioneering? must they have been pioneering?

Interro-negative form

Simple form	V-ing form
must I not pioneer? must you not pioneer? must he not pioneer? must we not pioneer? must you not pioneer? must they not pioneer?	must I not be pioneering? must you not be pioneering? must he not be pioneering? must we not be pioneering? must you not be pioneering? must they not be pioneering?
Perfect	V-ing perfect
must I not have pioneered? must you not have pioneered? must he not have pioneered? must we not have pioneered? must you not have pioneered? must they not have pioneered?	must I not have been pioneering? must you not have been pioneering? must he not have been pioneering? must we not have been pioneering? must you not have been pioneering? must they not have been pioneering?