English verb conjugation
MUST DETRAIN

Regular verb: detrain - detrained - detrained

Affirmation

Simple form	V-ing form
I must detrain you must detrain he must detrain we must detrain you must detrain they must detrain	I must be detraining you must be detraining he must be detraining we must be detraining you must be detraining they must be detraining
Perfect	V-ing perfect
I must have detrained you must have detrained he must have detrained we must have detrained you must have detrained they must have detrained	I must have been detraining you must have been detraining he must have been detraining we must have been detraining you must have been detraining they must have been detraining

Negation

Simple form	V-ing form
I must not detrain you must not detrain he must not detrain we must not detrain you must not detrain they must not detrain	I must not be detraining you must not be detraining he must not be detraining we must not be detraining you must not be detraining they must not be detraining
Perfect	V-ing perfect
I must not have detrained you must not have detrained he must not have detrained we must not have detrained you must not have detrained they must not have detrained	I must not have been detraining you must not have been detraining he must not have been detraining we must not have been detraining you must not have been detraining they must not have been detraining

Interrogative form

Simple form	V-ing form
must I detrain? must you detrain? must he detrain? must we detrain? must you detrain? must they detrain?	must I be detraining? must you be detraining? must he be detraining? must we be detraining? must you be detraining? must they be detraining?
Perfect	V-ing perfect
must I have detrained? must you have detrained? must he have detrained? must we have detrained? must you have detrained? must they have detrained?	must I have been detraining? must you have been detraining? must he have been detraining? must we have been detraining? must you have been detraining? must they have been detraining?

Interro-negative form

Simple form	V-ing form
must I not detrain? must you not detrain? must he not detrain? must we not detrain? must you not detrain? must they not detrain?	must I not be detraining? must you not be detraining? must he not be detraining? must we not be detraining? must you not be detraining? must they not be detraining?
Perfect	V-ing perfect
must I not have detrained? must you not have detrained? must he not have detrained? must we not have detrained? must you not have detrained? must they not have detrained?	must I not have been detraining? must you not have been detraining? must he not have been detraining? must we not have been detraining? must you not have been detraining? must they not have been detraining?