present
I signal
You signal
He signals
She signals
It signals
We signal
They signal
past
I signalled
You signalled
He signalled
She signalled
It signalled
We signalled
They signalled
future
I will signal
You will signal
He will signal
She will signal
It will signal
We will signal
They will signal
conditional
I would signal
You would signal
He would signal
She would signal
It would signal
We would signal
They would signal