很抱歉，我那时候不能来。

My apologies, I can't go at that time.

Source: Tatoeba

Sentence Composition

1 很 hěn
  1. very; quite
  2. (also, often used before an adjective without intensifying its meaning, i.e. as a meaningless syntactic element)
2 抱歉 bàoqiàn
  1. to be sorry
  2. to feel apologetic
  3. sorry!
3 我 wǒ
  1. I
  2. me
  3. my
=4 那时候 nàshíhou at that time
=4 那时候 nàshíhòu at that time; in those days; back then
5 不能 bùnéng
  1. cannot
  2. must not
  3. should not
6 来 lái
  1. to come
  2. (used as a substitute for a more specific verb)
  3. hither (directional complement for motion toward the speaker, as in 回來 huílai)
  4. ever since (as in 自古以來 zìgǔyǐlái)
  5. for the past (amount of time)
  6. (prefix) the coming ...; the next ... (as in 來世 láishì)
  7. (between two verbs) in order to
  8. (after a round number) approximately
  9. (used after 得 dé to indicate possibility, as in 談得來 tándelái, or after 不 bù to indicate impossibility, as in 吃不來 chībulái)