preserve

《簡單過去式》
I preserved
You preserved
He preserved
She preserved
It preserved
We preserved
You preserved
They preserved

《簡單現在式》
I preserve
You preserve
He preserves
She preserves
It preserves
We preserve
You preserve
They preserve

《簡單未來式》
I will preserve
You will preserve
He will preserve
She will preserve
It will preserve
We will preserve
You will preserve
They will preserve

《過去進行》
I was preserving
You were preserving
He was preserving
She was preserving
It was preserving
We were preserving
You were preserving
They were preserving

《現在進行》
I am preserving
You are preserving
He is preserving
She is preserving
It is preserving
We are preserving
You are preserving
They are preserving

《未來進行》
I will be preserving
You will be preserving
He will be preserving
She will be preserving.
It will be preserving
We will be preserving
You will be preserving
We will be preserving

《過去完成》
I had preserved
You had preserved
He had preserved
She had preserved
It had preserved
We had preserved
You had preserved
They had preserved

《現在完成》
I have preserved
You have preserved
He has preserved
She has preserved
It has preserved
We have preserved
You have preserved
They have preserved

《未來完成》
I will have preserved
You will have preserved
He will has preserved
She will have preserved
It will have preserved
We will have preserved
You will have preserved
They will have preserved

《過去完成行進》
I had been preserving
You had been preserving
He had been preserving
She had been preserving
It had been preserving
We had been preserving
You had been preserving
They had been preserving

《現在完成行進》
I have been preserving
You have been preserving
He has been preserving
She has been preserving
It has been preserving
We have been preserving
You have been preserving
They have been preserving

《未來完成行進》
I will had been preserving
You will had been preserving
He will had been preserving
She will had been preserving
It will had been preserving
We will had been preserving
You will had been preserving
They will had been preserving