must pioneer
Verbo regolare: pioneer - pioneered- pioneered

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
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	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	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
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	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	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
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? 	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? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
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? 	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?