must paper-train
Verbo regular: paper-train - paper-trained- paper-trained

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must paper-train
you must paper-train
he must paper-train
we must paper-train
you must paper-train
they must paper-train 	I must be paper-training
you must be paper-training
he must be paper-training
we must be paper-training
you must be paper-training
they must be paper-training	I must have paper-trained
you must have paper-trained
he must have paper-trained
we must have paper-trained
you must have paper-trained
they must have paper-trained	I must have been paper-training
you must have been paper-training
he must have been paper-training
we must have been paper-training
you must have been paper-training
they must have been paper-training	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not paper-train
you must not paper-train
he must not paper-train
we must not paper-train
you must not paper-train
they must not paper-train 	I must not be paper-training
you must not be paper-training
he must not be paper-training
we must not be paper-training
you must not be paper-training
they must not be paper-training	I must not have paper-trained
you must not have paper-trained
he must not have paper-trained
we must not have paper-trained
you must not have paper-trained
they must not have paper-trained	I must not have been paper-training
you must not have been paper-training
he must not have been paper-training
we must not have been paper-training
you must not have been paper-training
they must not have been paper-training	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I paper-train?
must you paper-train?
must he paper-train?
must we paper-train?
must you paper-train?
must they paper-train? 	must I be paper-training?
must you be paper-training?
must he be paper-training?
must we be paper-training?
must you be paper-training?
must they be paper-training? 	must I have paper-trained?
must you have paper-trained?
must he have paper-trained?
must we have paper-trained?
must you have paper-trained?
must they have paper-trained? 	must I have been paper-training?
must you have been paper-training?
must he have been paper-training?
must we have been paper-training?
must you have been paper-training?
must they have been paper-training? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not paper-train?
must you not paper-train?
must he not paper-train?
must we not paper-train?
must you not paper-train?
must they not paper-train? 	must I not be paper-training?
must you not be paper-training?
must he not be paper-training?
must we not be paper-training?
must you not be paper-training?
must they not be paper-training? 	must I not have paper-trained?
must you not have paper-trained?
must he not have paper-trained?
must we not have paper-trained?
must you not have paper-trained?
must they not have paper-trained? 	must I not have been paper-training?
must you not have been paper-training?
must he not have been paper-training?
must we not have been paper-training?
must you not have been paper-training?
must they not have been paper-training?