ascertain

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

《簡單現在式》
I ascertain
You ascertain
He ascertains
She ascertains
It ascertains
We ascertain
You ascertain
They ascertain

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

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

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

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

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

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

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

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

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

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