present
I respond
You respond
He responds
She responds
It responds
We respond
They respond
past
I responded
You responded
He responded
She responded
It responded
We responded
They responded
future
I will respond
You will respond
He will respond
She will respond
It will respond
We will respond
They will respond
conditional
I would respond
You would respond
He would respond
She would respond
It would respond
We would respond
They would respond