caution

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

《簡單現在式》
I caution
You caution
He cautions
She cautions
It cautions
We caution
You caution
They caution

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

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

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

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

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

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

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

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

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

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