English verb conjugation MUST MASS

Regular verb: mass - massed - massed

Affirmation

Simple form

I must mass
you must mass
he must mass
we must mass
you must mass
they must mass

V-ing form

I must be massing
you must be massing
he must be massing
we must be massing
you must be massing
they must be massing

Perfect

I must have massed
you must have massed
he must have massed
we must have massed
you must have massed
they must have massed

V-ing perfect

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

Negation

Simple form

I must not mass
you must not mass
he must not mass
we must not mass
you must not mass
they must not mass

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I mass?
must you mass?
must he mass?
must we mass?
must you mass?
must they mass?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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