English verb conjugation MUST THREAD

Regular verb: thread - threaded - threaded

Affirmation

Simple form

I must thread
you must thread
he must thread
we must thread
you must thread
they must thread

V-ing form

I must be threading
you must be threading
he must be threading
we must be threading
you must be threading
they must be threading

Perfect

I must have threaded
you must have threaded
he must have threaded
we must have threaded
you must have threaded
they must have threaded

V-ing perfect

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

Negation

Simple form

I must not thread
you must not thread
he must not thread
we must not thread
you must not thread
they must not thread

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I thread?
must you thread?
must he thread?
must we thread?
must you thread?
must they thread?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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