English verb conjugation MUST SUPERSEDE

Regular verb: supersede - superseded - superseded

Affirmation

Simple form

I must supersede
you must supersede
she must supersede
we must supersede
you must supersede
they must supersede

V-ing form

I must be superseding
you must be superseding
she must be superseding
we must be superseding
you must be superseding
they must be superseding

Perfect

I must have superseded
you must have superseded
she must have superseded
we must have superseded
you must have superseded
they must have superseded

V-ing perfect

I must have been superseding
you must have been superseding
she must have been superseding
we must have been superseding
you must have been superseding
they must have been superseding

Negation

Simple form

I mustn't supersede
you mustn't supersede
she mustn't supersede
we mustn't supersede
you mustn't supersede
they mustn't supersede

V-ing form

I mustn't be superseding
you mustn't be superseding
she mustn't be superseding
we mustn't be superseding
you mustn't be superseding
they mustn't be superseding

Perfect

I mustn't have superseded
you mustn't have superseded
she mustn't have superseded
we mustn't have superseded
you mustn't have superseded
they mustn't have superseded

V-ing perfect

I mustn't have been superseding
you mustn't have been superseding
she mustn't have been superseding
we mustn't have been superseding
you mustn't have been superseding
they mustn't have been superseding

Interrogative form

Simple form

must I supersede?
must you supersede?
must she supersede?
must we supersede?
must you supersede?
must they supersede?

V-ing form

must I be superseding?
must you be superseding?
must she be superseding?
must we be superseding?
must you be superseding?
must they be superseding?

Perfect

must I have superseded?
must you have superseded?
must she have superseded?
must we have superseded?
must you have superseded?
must they have superseded?

V-ing perfect

must I have been superseding?
must you have been superseding?
must she have been superseding?
must we have been superseding?
must you have been superseding?
must they have been superseding?

Interro-negative form

Simple form

mustn't I supersede?
mustn't you supersede?
mustn't she supersede?
mustn't we supersede?
mustn't you supersede?
mustn't they supersede?

V-ing form

mustn't I be superseding?
mustn't you be superseding?
mustn't she be superseding?
mustn't we be superseding?
mustn't you be superseding?
mustn't they be superseding?

Perfect

mustn't I have superseded?
mustn't you have superseded?
mustn't she have superseded?
mustn't we have superseded?
mustn't you have superseded?
mustn't they have superseded?

V-ing perfect

mustn't I have been superseding?
mustn't you have been superseding?
mustn't she have been superseding?
mustn't we have been superseding?
mustn't you have been superseding?
mustn't they have been superseding?

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