present
I service
You service
He services
She services
It services
We service
They service
past
I serviced
You serviced
He serviced
She serviced
It serviced
We serviced
They serviced
future
I will service
You will service
He will service
She will service
It will service
We will service
They will service
conditional
I would service
You would service
He would service
She would service
It would service
We would service
They would service