I'm really sorry.

我真的很抱歉。

youdao

Look, I'm really sorry I woke you, and, well, I just wanted to tell you I was all right.

你看，我真抱歉吵醒了你，嗯，我只是想告诉你我一切都很好。

《柯林斯英汉双解大词典》

I'm really sorry if I said anything wrong.

真抱歉，如果我有说错的地方。

《柯林斯英汉双解大词典》

Ma,I'm sorry, I'm really sorry.

VOA: special.2009.05.04

I'm really sorry. I'm sorry about keeping you waiting.

很抱歉让你久等了。

I'm sorry 实战 - SpeakingMax英语口语达人

So, that's more far in the future, and yeah, I don't really know, I'm sorry.

所以，这都是以后的事了，离我现在太遥远。真的不好意思，我不太清楚。

为了更美好的世界 - SpeakingMax英语口语达人

So I phoned him up, 'I'm really sorry, this wasn't my doing, this is a misunderstanding.

CNN: 'Man of Steel': Not the familiar Superman (fan)fare

Even when they say , "Listen we will tell it like it really is", I'm sorry, baloney.

BBC: Is truth a victim?

"I'm really sorry, " Carrasco said, explaining that he slipped on the pitch that drilled Youkilis.

WSJ: Carrasco ejected, Indians thrashed 14-1 by Yankees