English verb conjugation MUST DUCK

Regular verb: duck - ducked - ducked

Affirmation

Simple form

I must duck
you must duck
she must duck
we must duck
you must duck
they must duck

V-ing form

I must be ducking
you must be ducking
she must be ducking
we must be ducking
you must be ducking
they must be ducking

Perfect

I must have ducked
you must have ducked
she must have ducked
we must have ducked
you must have ducked
they must have ducked

V-ing perfect

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

Negation

Simple form

I must not duck
you must not duck
she must not duck
we must not duck
you must not duck
they must not duck

V-ing form

I must not be ducking
you must not be ducking
she must not be ducking
we must not be ducking
you must not be ducking
they must not be ducking

Perfect

I must not have ducked
you must not have ducked
she must not have ducked
we must not have ducked
you must not have ducked
they must not have ducked

V-ing perfect

I must not have been ducking
you must not have been ducking
she must not have been ducking
we must not have been ducking
you must not have been ducking
they must not have been ducking

Interrogative form

Simple form

must I duck?
must you duck?
must she duck?
must we duck?
must you duck?
must they duck?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

must I not duck?
must you not duck?
must she not duck?
must we not duck?
must you not duck?
must they not duck?

V-ing form

must I not be ducking?
must you not be ducking?
must she not be ducking?
must we not be ducking?
must you not be ducking?
must they not be ducking?

Perfect

must I not have ducked?
must you not have ducked?
must she not have ducked?
must we not have ducked?
must you not have ducked?
must they not have ducked?

V-ing perfect

must I not have been ducking?
must you not have been ducking?
must she not have been ducking?
must we not have been ducking?
must you not have been ducking?
must they not have been ducking?

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