Japanese phrase
誠に申し訳ございません。 makoto ni mō shi wake go za i ma se n
Meaning
I sincerely apologize.
When to use it
Expresses a very formal and sincere apology. It suits serious mistakes, delays, or inconvenience in business and other highly polite situations.
Example dialogue
納品はいつになりますか？ nō hin wa i tsu ni na ri ma su ka
When will the delivery be ready?
明日お届けします。誠に申し訳ございません。 asu o todo ke shi ma su makoto ni mō shi wake go za i ma se n
We will deliver it tomorrow. I sincerely apologize.