contribute

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

《簡單現在式》
I contribute
You contribute
He contributes
She contributes
It contributes
We contribute
You contribute
They contribute

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

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

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

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

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

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

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

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

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

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