present
I pen
You pen
He pens
She pens
It pens
We pen
They pen
past
I penned
You penned
He penned
She penned
It penned
We penned
They penned
future
I will pen
You will pen
He will pen
She will pen
It will pen
We will pen
They will pen
conditional
I would pen
You would pen
He would pen
She would pen
It would pen
We would pen
They would pen