English verb conjugation MUST UNFASTEN

Regular verb: unfasten - unfastened - unfastened

Affirmation

Simple form

I must unfasten
you must unfasten
he must unfasten
we must unfasten
you must unfasten
they must unfasten

V-ing form

I must be unfastening
you must be unfastening
he must be unfastening
we must be unfastening
you must be unfastening
they must be unfastening

Perfect

I must have unfastened
you must have unfastened
he must have unfastened
we must have unfastened
you must have unfastened
they must have unfastened

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I unfasten?
must you unfasten?
must he unfasten?
must we unfasten?
must you unfasten?
must they unfasten?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Page top