English verb conjugation MUST PEN

Regular verb: pen - penned - penned

Affirmation

Simple form

I must pen
you must pen
he must pen
we must pen
you must pen
they must pen

V-ing form

I must be penning
you must be penning
he must be penning
we must be penning
you must be penning
they must be penning

Perfect

I must have penned
you must have penned
he must have penned
we must have penned
you must have penned
they must have penned

V-ing perfect

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

Negation

Simple form

I must not pen
you must not pen
he must not pen
we must not pen
you must not pen
they must not pen

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I pen?
must you pen?
must he pen?
must we pen?
must you pen?
must they pen?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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