Examples of using "長い間、待たせて申し訳ございません。" in a sentence and their english translations:
I am sorry to have kept you waiting so long.
- I am sorry to have kept you waiting so long.
- I'm sorry I made you wait so long.
- I'm sorry that I made you wait so long.
- I am sorry to have kept you waiting so long.
- I'm sorry to have kept you waiting so long.