English verb conjugation MUST CREAK

Regular verb: creak - creaked - creaked

Affirmation

Simple form

I must creak
you must creak
he must creak
we must creak
you must creak
they must creak

V-ing form

I must be creaking
you must be creaking
he must be creaking
we must be creaking
you must be creaking
they must be creaking

Perfect

I must have creaked
you must have creaked
he must have creaked
we must have creaked
you must have creaked
they must have creaked

V-ing perfect

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

Negation

Simple form

I must not creak
you must not creak
he must not creak
we must not creak
you must not creak
they must not creak

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I creak?
must you creak?
must he creak?
must we creak?
must you creak?
must they creak?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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