Could you tell me what the difference is between"He is finished" and "He finished" in the sentence?
Hi!
I read an article, I was confused of this sentence,
When he is finished, Peter says, " I'm proud of you, buddy."

Can I revise it as "when he finished'?
What is the difference between them?

Please explain it in English.
Thanks.

---------the below is updated:

The context is,
Joseph delivers a speech about his dog. When he is finished, fellow member Peter says, " I'm proud of you, buddy."

Thanks.

Question

Could you tell me what the difference is between"He is finished" and "He finished" in the sentence?
Hi!
I read an article, I was confused of this sentence,
When he is finished, Peter says, " I'm proud of you, buddy."

Can I revise it as "when he finished'?
What is the difference between them?

Please explain it in English.
Thanks.

---------the below is updated:

The context is,
Joseph delivers a speech about his dog. When he is finished, fellow member Peter says, " I'm proud of you, buddy."

Thanks.

Answer

I agree with one of the other commenters, a little more context is needed as there could be more than one way to explain it depending on the situation

Answer

@Cher  I updated the context, please check it. Thanks.

Answer

He finished the work. (Active sentence)
__________________________________________

He is finished/ It is mostly used in some particular conditions such as "finishing a book" or "finishing an exam paper".

Answer

Seems like we may need more context to understand what the situation is. Could also say When finished,...Depending on the context.