English verb conjugation MUST STUD

Regular verb: stud - studded - studded

Affirmation

Simple form

I must stud
you must stud
he must stud
we must stud
you must stud
they must stud

V-ing form

I must be studding
you must be studding
he must be studding
we must be studding
you must be studding
they must be studding

Perfect

I must have studded
you must have studded
he must have studded
we must have studded
you must have studded
they must have studded

V-ing perfect

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

Negation

Simple form

I must not stud
you must not stud
he must not stud
we must not stud
you must not stud
they must not stud

V-ing form

I must not be studding
you must not be studding
he must not be studding
we must not be studding
you must not be studding
they must not be studding

Perfect

I must not have studded
you must not have studded
he must not have studded
we must not have studded
you must not have studded
they must not have studded

V-ing perfect

I must not have been studding
you must not have been studding
he must not have been studding
we must not have been studding
you must not have been studding
they must not have been studding

Interrogative form

Simple form

must I stud?
must you stud?
must he stud?
must we stud?
must you stud?
must they stud?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

must I not stud?
must you not stud?
must he not stud?
must we not stud?
must you not stud?
must they not stud?

V-ing form

must I not be studding?
must you not be studding?
must he not be studding?
must we not be studding?
must you not be studding?
must they not be studding?

Perfect

must I not have studded?
must you not have studded?
must he not have studded?
must we not have studded?
must you not have studded?
must they not have studded?

V-ing perfect

must I not have been studding?
must you not have been studding?
must he not have been studding?
must we not have been studding?
must you not have been studding?
must they not have been studding?

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