I'm sorry vs Look I'm really sorry

When to use each in English, with meaning, register, and examples.

I'm sorry

High-frequency chunk

Look I'm really sorry

InformalTop 2,000 (common)
Most formal: I'm sorryMost common: I'm sorry
 I'm sorryLook I'm really sorry
Pronunciation🇬🇧 //aɪm ˈsɒri//🇺🇸 //aɪm ˈsɔri//🇬🇧 //lʊk aɪm ˈrɪəli ˈsɒri//🇺🇸 //lʊk aɪm ˈrɪli ˈsɑri//
MeaningA way to say you regret something.A way to apologize sincerely.
ExampleI'm sorry for being late to the meeting.Look, I'm really sorry for being late.
RegisterNeutralInformal
How commonHigh-frequency chunkTop 2,000 (common)
CollocationsI'm sorry to hear that, I'm sorry for your loss, I'm sorry about thatreally sorry for, sincerely sorry, deeply sorry, truly sorry, apologize sincerely
AntonymsI'm glad, I'm happy, No problem, You're welcome-
Common mistakesUsing it too casually in serious situations., Not following up with an explanation when needed., Overusing it can make apologies feel insincere.Omitting 'I'm' for incorrect grammar., Using it in formal situations., Not using a sincere tone.
Usage notesUsed to express regret or apologize. Appropriate in both formal and informal situations; however, in very formal contexts, you might choose 'I apologize' instead.Use in casual conversations when you want to express sincere regret. Avoid in formal contexts; instead, use more formal apologies.

See it in real clips

I'm sorry
Look I'm really sorry

Frequently asked questions: I'm sorry vs Look I'm really sorry

What's the difference between I'm sorry and Look I'm really sorry?

I'm sorry: A way to say you regret something. Look I'm really sorry: A way to apologize sincerely.

Which is more formal: I'm sorry and Look I'm really sorry?

I'm sorry is the most formal of these.

Which is more common: I'm sorry and Look I'm really sorry?

I'm sorry is the most common in everyday English.

Can you show an example of each?

I'm sorry: I'm sorry for being late to the meeting. Look I'm really sorry: Look, I'm really sorry for being late.

Can I use I'm sorry and Look I'm really sorry interchangeably?

Not always. I'm sorry and Look I'm really sorry are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

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