English verb conjugation MUST RETRAIN

Regular verb: retrain - retrained - retrained

Affirmation

Simple form

I must retrain
you must retrain
he must retrain
we must retrain
you must retrain
they must retrain

V-ing form

I must be retraining
you must be retraining
he must be retraining
we must be retraining
you must be retraining
they must be retraining

Perfect

I must have retrained
you must have retrained
he must have retrained
we must have retrained
you must have retrained
they must have retrained

V-ing perfect

I must have been retraining
you must have been retraining
he must have been retraining
we must have been retraining
you must have been retraining
they must have been retraining

Negation

Simple form

I mustn't retrain
you mustn't retrain
he mustn't retrain
we mustn't retrain
you mustn't retrain
they mustn't retrain

V-ing form

I mustn't be retraining
you mustn't be retraining
he mustn't be retraining
we mustn't be retraining
you mustn't be retraining
they mustn't be retraining

Perfect

I mustn't have retrained
you mustn't have retrained
he mustn't have retrained
we mustn't have retrained
you mustn't have retrained
they mustn't have retrained

V-ing perfect

I mustn't have been retraining
you mustn't have been retraining
he mustn't have been retraining
we mustn't have been retraining
you mustn't have been retraining
they mustn't have been retraining

Interrogative form

Simple form

must I retrain?
must you retrain?
must he retrain?
must we retrain?
must you retrain?
must they retrain?

V-ing form

must I be retraining?
must you be retraining?
must he be retraining?
must we be retraining?
must you be retraining?
must they be retraining?

Perfect

must I have retrained?
must you have retrained?
must he have retrained?
must we have retrained?
must you have retrained?
must they have retrained?

V-ing perfect

must I have been retraining?
must you have been retraining?
must he have been retraining?
must we have been retraining?
must you have been retraining?
must they have been retraining?

Interro-negative form

Simple form

mustn't I retrain?
mustn't you retrain?
mustn't he retrain?
mustn't we retrain?
mustn't you retrain?
mustn't they retrain?

V-ing form

mustn't I be retraining?
mustn't you be retraining?
mustn't he be retraining?
mustn't we be retraining?
mustn't you be retraining?
mustn't they be retraining?

Perfect

mustn't I have retrained?
mustn't you have retrained?
mustn't he have retrained?
mustn't we have retrained?
mustn't you have retrained?
mustn't they have retrained?

V-ing perfect

mustn't I have been retraining?
mustn't you have been retraining?
mustn't he have been retraining?
mustn't we have been retraining?
mustn't you have been retraining?
mustn't they have been retraining?

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