present
I head
You head
He heads
She heads
It heads
We head
They head
past
I headed
You headed
He headed
She headed
It headed
We headed
They headed
future
I will head
You will head
He will head
She will head
It will head
We will head
They will head
conditional
I would head
You would head
He would head
She would head
It would head
We would head
They would head