sum

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

《簡單現在式》
I sum
You sum
He sums
She sums
It sums
We sum
You sum
They sum

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

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

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

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

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

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

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

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

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

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