sharpen

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

《簡單現在式》
I sharpen
You sharpen
He sharpens
She sharpens
It sharpens
We sharpen
You sharpen
They sharpen

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

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

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

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

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

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

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

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

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

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