I am so sorry vs Regret

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

I am so sorry

Top 2,000 (common)

Regret

Top 1,000 (very common)B2verb
Most common: Regret
 I am so sorryRegret
Pronunciation🇬🇧 //aɪ æm səʊ ˈsɒr.i//🇺🇸 //aɪ æm soʊ ˈsɔr.i//🇬🇧 /["/rɪˈɡret/","/rɪˈɡrets/","/rɪˈɡretɪd/","/rɪˈɡretɪŋ/"]/🇺🇸 /["/rɪˈɡret/","/rɪˈɡrets/","/rɪˈɡretɪd/","/rɪˈɡretɪŋ/"]/
MeaningI feel bad for what I did.To feel sad or sorry about something you did or didn't do.
ExampleI am so sorry for arriving late to the meeting.I regret not studying harder for my exams.
RegisterNeutralNeutral
How commonTop 2,000 (common)Top 1,000 (very common)
CEFR level-B2
Part of speechverb
Collocationsdeeply sorry, truly sorry, very sorrybitterly, deeply, greatly, begin to, come to, grow to, bitterly, deeply, greatly, begin to, come to, grow to
Antonymsunapologetic, indifferent, unremorsefulsatisfaction, contentment, pride
Common mistakesUsing 'sorry' without the subject, 'I am sorry' is more polite., Confusing with 'excuse me' which is less formal., Overusing this phrase in situations where a simple 'thanks' suffices.'Regret' is often confused with 'remorse'. Remorse includes a stronger sense of guilt., Learners might say 'I regret to do...' instead of 'I regret doing...'., Confusion between 'regret' and 'regrettable' which is an adjective.
Usage notesUse this phrase when you apologize; it is suitable in most situations, personal or professional. Avoid in casual or joking contexts, where a lighter phrase might be appropriate.Use 'regret' to express feelings about past actions. It's appropriate in neutral to formal contexts, but less so in casual conversations where simpler phrases might fit better.

See it in real clips

I am so sorry
Regret

Frequently asked questions: I am so sorry vs Regret

What's the difference between I am so sorry and Regret?

I am so sorry: I feel bad for what I did. Regret: To feel sad or sorry about something you did or didn't do.

Which is more common: I am so sorry and Regret?

Regret is the most common in everyday English.

Can you show an example of each?

I am so sorry: I am so sorry for arriving late to the meeting. Regret: I regret not studying harder for my exams.

Can I use I am so sorry and Regret interchangeably?

Not always. I am so sorry and Regret 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.

Related comparisons