English verb conjugation MUST SKIVVY

Regular verb: skivvy - skivvied - skivvied

Affirmation

Simple form

I must skivvy
you must skivvy
he must skivvy
we must skivvy
you must skivvy
they must skivvy

V-ing form

I must be skivvying
you must be skivvying
he must be skivvying
we must be skivvying
you must be skivvying
they must be skivvying

Perfect

I must have skivvied
you must have skivvied
he must have skivvied
we must have skivvied
you must have skivvied
they must have skivvied

V-ing perfect

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

Negation

Simple form

I must not skivvy
you must not skivvy
he must not skivvy
we must not skivvy
you must not skivvy
they must not skivvy

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I skivvy?
must you skivvy?
must he skivvy?
must we skivvy?
must you skivvy?
must they skivvy?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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