Sorry Japanese has a lot of different uses for each object to show your courtesy as well as your respect for the person you are communicating with.
1. すみません or ごめんなさい
(sumimasen or gomennasai )
Sorry
2. 私 のせいです
(watashi no seidesu )
It was my fault
3. 私 の 不 注 意 でした
(Watashi no fu chū ideshita )
I was very careless
4. そんな 心 算 ではありませんでした
(Sonna kokoro sande wa arimasendeshita )
I do not mean that.
5. 今 度はきちんとします
(Kondo wa kichintoshimasu )
I will do it right next time.
6. お待たせして 申 し 訳 ありません
(Omataseshite mou wakearimasen )
Sorry for making you wait
7. 遅 くなって済みません
(Osoku natta sumimasen )
Forgive me for being late.
8. ご 迷 惑 ですか?
(Gomeiwakudesuka )
Am I disturbing you?
9. ちょっと、お手数をおかけしてよろしいでしょうか
(Chotto, otesuu wo okakeshite yoroshiideshyouka )
Can i bother you a little
10. ちょっと、待って 下 さい
(Chotto matte kudasai )
Please wait a moment
11. 少々, 失 礼 します
(Shyou shyou shitureishimasu )
Excuse me, please