English verb conjugation MUST UNBUILD

Irregular verb: unbuild - unbuilt - unbuilt

Affirmation

Simple form

I must unbuild
you must unbuild
he must unbuild
we must unbuild
you must unbuild
they must unbuild

V-ing form

I must be unbuilding
you must be unbuilding
he must be unbuilding
we must be unbuilding
you must be unbuilding
they must be unbuilding

Perfect

I must have unbuilt
you must have unbuilt
he must have unbuilt
we must have unbuilt
you must have unbuilt
they must have unbuilt

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I unbuild?
must you unbuild?
must he unbuild?
must we unbuild?
must you unbuild?
must they unbuild?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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