English verb conjugation MUST STUDY

Regular verb: study - studied - studied

Affirmation

Simple form

I must study
you must study
he must study
we must study
you must study
they must study

V-ing form

I must be studying
you must be studying
he must be studying
we must be studying
you must be studying
they must be studying

Perfect

I must have studied
you must have studied
he must have studied
we must have studied
you must have studied
they must have studied

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I study?
must you study?
must he study?
must we study?
must you study?
must they study?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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