slacken

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

《簡單現在式》
I slacken
You slacken
He slackens
She slackens
It slackens
We slacken
You slacken
They slacken

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

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

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

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

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

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

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

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

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

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