How to Say ‘I'm really sorry.’ in Japanese
本当にすみませんでした。
hontou ni sumi mase n deshi ta
[hon-TOH nee soo-mee mah-seh n DEH-shee tah]
💬 Usage Tip: すみませんでした is the past form of すみません, so it apologizes for something that already happened rather than just saying "excuse me". 本当に is said (hontō ni).
Phrase Breakdown
本当に
hontou ni
truly / really
本当に (hontou ni) adds strong sincerity. Hold the long 'tou' for two beats.
本当にありがとう。
Thank you so much.
Words in this phrase
本当
hontou
[hon-TOH]
really
Truly or genuinely.
本当にありがとう。
Thank you very much.
に
ni
[nee]
(adverb-forming particle)
Turns 本当 into the adverb 'really, truly'.
本当にありがとう。
Thank you so much.
すみませんでした。
sumi mase n deshi ta
I'm sorry (for what happened)
This is the past form of すみません, used to apologize for something already done. The 'u' in 'su' is light.
遅れてすみませんでした。
I'm sorry for being late.
Words in this phrase
すみ
sumi
[soo-mee]
excuse me; sorry
A polite attention-getter and light apology. Used to call a pharmacist/staff or to be polite before asking for help.
すみません、薬剤師さん。
Excuse me, pharmacist.
ませ
mase
[mah-seh]
polite negative (part of ません)
「ませ」 is part of 「ません」, the polite negative form.
はいていません。
I haven’t vomited.
ん
n
[n]
Negative verb ending
The ending used to make the verb negative in a sentence.
私は行きません。
I am not going.
でし
deshi
[DEH-shee]
was (polite copula stem)
Stem of the polite copula です in its past form, combined with た to make でした.
昨日は雨でした。
It was rainy yesterday.
た
ta
[tah]
past tense ending
This ending completes the polite past tense form.
空席がございまし た。
There were vacant seats.
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