English verb conjugation
MUST PAPER-TRAIN

Regular verb: paper-train - paper-trained - paper-trained

Affirmation

Simple form	V-ing form
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
Perfect	V-ing perfect
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

Negation

Simple form	V-ing form
I mustn't paper-train you mustn't paper-train he mustn't paper-train we mustn't paper-train you mustn't paper-train they mustn't paper-train	I mustn't be paper-training you mustn't be paper-training he mustn't be paper-training we mustn't be paper-training you mustn't be paper-training they mustn't be paper-training
Perfect	V-ing perfect
I mustn't have paper-trained you mustn't have paper-trained he mustn't have paper-trained we mustn't have paper-trained you mustn't have paper-trained they mustn't have paper-trained	I mustn't have been paper-training you mustn't have been paper-training he mustn't have been paper-training we mustn't have been paper-training you mustn't have been paper-training they mustn't have been paper-training

Interrogative form

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

Interro-negative form

Simple form	V-ing form
mustn't I paper-train? mustn't you paper-train? mustn't he paper-train? mustn't we paper-train? mustn't you paper-train? mustn't they paper-train?	mustn't I be paper-training? mustn't you be paper-training? mustn't he be paper-training? mustn't we be paper-training? mustn't you be paper-training? mustn't they be paper-training?
Perfect	V-ing perfect
mustn't I have paper-trained? mustn't you have paper-trained? mustn't he have paper-trained? mustn't we have paper-trained? mustn't you have paper-trained? mustn't they have paper-trained?	mustn't I have been paper-training? mustn't you have been paper-training? mustn't he have been paper-training? mustn't we have been paper-training? mustn't you have been paper-training? mustn't they have been paper-training?