present
I decay
You decay
He decays
She decays
It decays
We decay
They decay
past
I decayed
You decayed
He decayed
She decayed
It decayed
We decayed
They decayed
future
I will decay
You will decay
He will decay
She will decay
It will decay
We will decay
They will decay
conditional
I would decay
You would decay
He would decay
She would decay
It would decay
We would decay
They would decay