English verb conjugation MUST DECAY

Regular verb: decay - decayed - decayed

Affirmation

Simple form

I must decay
you must decay
he must decay
we must decay
you must decay
they must decay

V-ing form

I must be decaying
you must be decaying
he must be decaying
we must be decaying
you must be decaying
they must be decaying

Perfect

I must have decayed
you must have decayed
he must have decayed
we must have decayed
you must have decayed
they must have decayed

V-ing perfect

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

Negation

Simple form

I must not decay
you must not decay
he must not decay
we must not decay
you must not decay
they must not decay

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I decay?
must you decay?
must he decay?
must we decay?
must you decay?
must they decay?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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