present
I preserve
You preserve
He preserves
She preserves
It preserves
We preserve
They preserve
past
I preserved
You preserved
He preserved
She preserved
It preserved
We preserved
They preserved
future
I will preserve
You will preserve
He will preserve
She will preserve
It will preserve
We will preserve
They will preserve
conditional
I would preserve
You would preserve
He would preserve
She would preserve
It would preserve
We would preserve
They would preserve