他们不是在打架，而是在排练戏剧。

They aren't quarreling, but are rehearsing a play.

Source: Tatoeba

Sentence Composition

1 他们 tāmen they; them
=2 不是 bùshì
  1. no
  2. is not
  3. not
=2 不是 bùshi fault; blame
3 在 zài
  1. to exist; to be alive
  2. (of sb or sth) to be (located) at
  3. (used before a verb to indicate an action in progress)
4 打架 dǎjià
  1. to fight
  2. to scuffle
  3. to come to blows

classifier: 場
5 而是 érshì rather
6 在 zài
  1. to exist; to be alive
  2. (of sb or sth) to be (located) at
  3. (used before a verb to indicate an action in progress)
7 排练 páiliàn
  1. to rehearse
  2. rehearsal
8 戏剧 xìjù
  1. a drama; a play; theater
  2. script of a play