English verb conjugation MUST COMMENCE

Regular verb: commence - commenced - commenced

Affirmation

Simple form

I must commence
you must commence
he must commence
we must commence
you must commence
they must commence

V-ing form

I must be commencing
you must be commencing
he must be commencing
we must be commencing
you must be commencing
they must be commencing

Perfect

I must have commenced
you must have commenced
he must have commenced
we must have commenced
you must have commenced
they must have commenced

V-ing perfect

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

Negation

Simple form

I must not commence
you must not commence
he must not commence
we must not commence
you must not commence
they must not commence

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I commence?
must you commence?
must he commence?
must we commence?
must you commence?
must they commence?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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