undertake

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

《簡單現在式》
I undertake
You undertake
He undertakes
She undertakes
It undertakes
We undertake
You undertake
They undertake

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

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

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

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

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

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

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

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

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

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