English verb conjugation COULD DECAY

Regular verb: decay - decayed - decayed


Affirmation

Simple form

I could decay
you could decay
he could decay
we could decay
you could decay
they could decay

V-ing form

I could be decaying
you could be decaying
he could be decaying
we could be decaying
you could be decaying
they could be decaying

Perfect

I could have decayed
you could have decayed
he could have decayed
we could have decayed
you could have decayed
they could have decayed

V-ing perfect

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

Negation

Simple form

I could not decay
you could not decay
he could not decay
we could not decay
you could not decay
they could not decay

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I decay?
could you decay?
could he decay?
could we decay?
could you decay?
could they decay?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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