Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
I must apologize
Grammar usage guide and real-world examplesUSAGE SUMMARY
'I must apologize' is correct and usable in written English.
It is often used to express regret for your actions or words towards someone else. For example: "I must apologize for how I spoke to you earlier. I didn't mean to be so rude."
✓ Grammatically correct
News & Media
Formal & Business
Science
Alternative expressions(20)
I must disagree
I must be
I must say
I truly regret
I sincerely apologize
I must decline
I completely apologize
I must have
My apologies
I must escape
I'm sorry
I totally apologize
I must tell
I am truly sorry
I'm so sorry
I beg your pardon
I am sorry
I offer my deepest apologies
I absolutely apologize
I should apologize
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
13 human-written examples
"I must apologize," Morgan said.
News & Media
"I must apologize for my appearance," he went on.
News & Media
As an older American I must apologize; we as a country have dropped the ball.
News & Media
"I must apologize again for deciding to come to live in England," he said.
News & Media
I must apologize to him, for I try to adhere to his first admonition but ignore the second.
News & Media
"Oh, I must apologize for so continually washing out your mouth with soap," she reads, "when you're this perfect older city-living thing I lean on.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
46 human-written examples
You cannot have a normal relationship with an individual or a country whose attitude is: When you are wrong you must apologize, and when I am wrong you must apologize.
News & Media
She must apologize immediately and follow up that apology with her resignation".
News & Media
I know that defeats the point of spying, but you MUST apologize, tell them why you're stalking them and leave them alone.
Wiki
"He must apologize personally," the woman said.
News & Media
@SenJohnMcCain called them "crazies" – must apologize!" Trump tweeted.
News & Media
Expert writing Tips
Best practice
Follow up your apology with actions that demonstrate your commitment to not repeating the mistake.
Common error
While "I must apologize" is grammatically correct, it can sound overly formal in casual conversations. Consider using a simpler phrase like "I'm sorry" or "My bad" in informal settings.
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "I must apologize" functions as a performative utterance, where the act of saying it constitutes the act of apologizing. It explicitly conveys the speaker's regret and acknowledges a need for atonement. Ludwig AI shows that it is usually followed by a statement of regret.
Frequent in
News & Media
30%
Formal & Business
25%
Science
20%
Less common in
Wiki
10%
Encyclopedias
8%
Academia
7%
Ludwig's WRAP-UP
The phrase "I must apologize" is a common and grammatically correct way to express regret, as validated by Ludwig. It carries a tone of obligation and is suitable for both formal and semi-formal contexts. While frequently found in "News & Media", "Formal & Business", and scientific sources, it may sound overly formal in casual settings. To ensure effective communication, sincerity and specificity are crucial when delivering the apology. Alternatives like "I'm sorry" or "My bad" might be more appropriate in informal scenarios.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
I want to apologize
Direct statement of intent to apologize, slightly less formal.
I should apologize
Similar in meaning, but expresses a sense of obligation.
I owe you an apology
Acknowledges the need to apologize to someone.
I am sorry
A simple and common expression of regret.
I'm so sorry
An expression of great regret and remorse.
Please accept my apologies
A more formal way to offer an apology.
My apologies
A brief, somewhat formal expression of apology.
Forgive me
A direct plea for forgiveness.
I beg your pardon
A polite, often formal way to apologize or ask for repetition.
I regret to inform you
Formal expression of regret, often used in professional settings.
FAQs
What is the difference between "I must apologize" and "I should apologize"?
"I must apologize" conveys a stronger sense of obligation or necessity, whereas "I should apologize" suggests a recommendation or advisability. The former is a stronger expression of duty.
What are some situations where I might use "I must apologize"?
You can use "I must apologize" when you have made a significant error, caused offense, or failed to meet expectations. It is appropriate in both formal and somewhat serious situations.
Is "I must apologize" too formal for casual conversation?
What can I say after "I must apologize" to make my apology more effective?
After saying "I must apologize", it's helpful to explain what you are apologizing for, acknowledge the impact of your actions, and express your commitment to not repeating the mistake. For example, "I must apologize for being late; I understand it disrupted the meeting, and I'll ensure it doesn't happen again."
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested