English verb conjugation MUST UNSTRING

Irregular verb: unstring - unstrung - unstrung

Affirmation

Simple form

I must unstring
you must unstring
he must unstring
we must unstring
you must unstring
they must unstring

V-ing form

I must be unstringing
you must be unstringing
he must be unstringing
we must be unstringing
you must be unstringing
they must be unstringing

Perfect

I must have unstrung
you must have unstrung
he must have unstrung
we must have unstrung
you must have unstrung
they must have unstrung

V-ing perfect

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

Negation

Simple form

I must not unstring
you must not unstring
he must not unstring
we must not unstring
you must not unstring
they must not unstring

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I unstring?
must you unstring?
must he unstring?
must we unstring?
must you unstring?
must they unstring?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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