English verb conjugation MUST DUCK

Regular verb: duck - ducked - ducked

Affirmation

Simple form

I must duck
you must duck
he must duck
we must duck
you must duck
they must duck

V-ing form

I must be ducking
you must be ducking
he must be ducking
we must be ducking
you must be ducking
they must be ducking

Perfect

I must have ducked
you must have ducked
he 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
he 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
he 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
he 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
he 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
he 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 he duck?
must we duck?
must you duck?
must they duck?

V-ing form

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

Perfect

must I have ducked?
must you have ducked?
must he 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 he 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 he 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 he 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 he 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 he 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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