那个时候，我在家。

I was at home then.

Source: Tatoeba

Sentence Composition

1 那个 nàge
  1. that one
  2. that thing
  3. that (as opposed to this)
  4. (used before a verb or adjective for emphasis)
  5. (used to humorously or indirectly refer to sth embarrassing, funny etc, or when one can't think of the right word)
  6. (used in speech as a filler, similar to "umm", "you know" etc)
  7. (euph.) menstruation
  8. sex
  9. also pr. nèige
2 时候 shíhou
  1. time
  2. length of time
  3. moment
  4. period
3 我 wǒ
  1. I
  2. me
  3. my
4 在家 zàijiā
  1. to be at home
  2. (at a workplace) to be in (as opposed to being away on official business 出差 chūchāi)
  3. (Buddhism etc) to remain a layman (as opposed to becoming a monk or a nun 出家 chūjiā)