Question

What will be the passive voice of : I KEPT HIM STANDING FOR AN HOUR

everybody is saying that the answer of this will be: he was kept standing for an hour by me.

BUT BY SEEING THIS EXAMPLE I THINK THAT IT WILL BE:
he was being kept stood for an hour by me.
PLEASE TELL WHAT IS CORRECT?​

Answer 1

He was kept standing for an hour by me.

This is the sentence in passive voice.

I think this is the correct ans