English verb conjugation MUST BURDEN

Regular verb: burden - burdened - burdened

Affirmation

Simple form

I must burden
you must burden
he must burden
we must burden
you must burden
they must burden

V-ing form

I must be burdening
you must be burdening
he must be burdening
we must be burdening
you must be burdening
they must be burdening

Perfect

I must have burdened
you must have burdened
he must have burdened
we must have burdened
you must have burdened
they must have burdened

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I burden?
must you burden?
must he burden?
must we burden?
must you burden?
must they burden?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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