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申し訳ない， 申し訳無い， 申しわけない， もうしわけない
1. I'm sorry, (it's) inexcusable, I feel regretful, I feel guilty
2. thank you very much (for help, etc.)
tbd
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できる， 出来る
1. to be able to do, to be possible, to be permitted (to do)
2. to be good at, to do well, to be proficient (in), to be capable
3. to come into existence, to form, to appear, to come up (of a matter), to be born, to make (a friend), to get (a girlfri...
(表示)能力、可能、允许；精通、熟练、擅长；建、建成、建立……；完成、准备好了
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のです， んです
1. the expectation is that ..., the reason is that ..., the fact is that ..., the explanation is that ..., it is that ...
tbd