English verb conjugation
MUST PRETRAIN

Regular verb: pretrain - pretrained - pretrained

Affirmation

Simple form	V-ing form
I must pretrain you must pretrain he must pretrain we must pretrain you must pretrain they must pretrain	I must be pretraining you must be pretraining he must be pretraining we must be pretraining you must be pretraining they must be pretraining
Perfect	V-ing perfect
I must have pretrained you must have pretrained he must have pretrained we must have pretrained you must have pretrained they must have pretrained	I must have been pretraining you must have been pretraining he must have been pretraining we must have been pretraining you must have been pretraining they must have been pretraining

Negation

Simple form	V-ing form
I must not pretrain you must not pretrain he must not pretrain we must not pretrain you must not pretrain they must not pretrain	I must not be pretraining you must not be pretraining he must not be pretraining we must not be pretraining you must not be pretraining they must not be pretraining
Perfect	V-ing perfect
I must not have pretrained you must not have pretrained he must not have pretrained we must not have pretrained you must not have pretrained they must not have pretrained	I must not have been pretraining you must not have been pretraining he must not have been pretraining we must not have been pretraining you must not have been pretraining they must not have been pretraining

Interrogative form

Simple form	V-ing form
must I pretrain? must you pretrain? must he pretrain? must we pretrain? must you pretrain? must they pretrain?	must I be pretraining? must you be pretraining? must he be pretraining? must we be pretraining? must you be pretraining? must they be pretraining?
Perfect	V-ing perfect
must I have pretrained? must you have pretrained? must he have pretrained? must we have pretrained? must you have pretrained? must they have pretrained?	must I have been pretraining? must you have been pretraining? must he have been pretraining? must we have been pretraining? must you have been pretraining? must they have been pretraining?

Interro-negative form

Simple form	V-ing form
must I not pretrain? must you not pretrain? must he not pretrain? must we not pretrain? must you not pretrain? must they not pretrain?	must I not be pretraining? must you not be pretraining? must he not be pretraining? must we not be pretraining? must you not be pretraining? must they not be pretraining?
Perfect	V-ing perfect
must I not have pretrained? must you not have pretrained? must he not have pretrained? must we not have pretrained? must you not have pretrained? must they not have pretrained?	must I not have been pretraining? must you not have been pretraining? must he not have been pretraining? must we not have been pretraining? must you not have been pretraining? must they not have been pretraining?