English verb conjugation MUST YEN

Regular verb: yen - yenned - yenned

Affirmation

Simple form

I must yen
you must yen
he must yen
we must yen
you must yen
they must yen

V-ing form

I must be yenning
you must be yenning
he must be yenning
we must be yenning
you must be yenning
they must be yenning

Perfect

I must have yenned
you must have yenned
he must have yenned
we must have yenned
you must have yenned
they must have yenned

V-ing perfect

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

Negation

Simple form

I must not yen
you must not yen
he must not yen
we must not yen
you must not yen
they must not yen

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I yen?
must you yen?
must he yen?
must we yen?
must you yen?
must they yen?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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