我不認為你該改變。

I don't think you need to change.

Source: Tatoeba

Sentence Composition

1 我 wǒ
  1. I
  2. me
  3. my
2 不 bù
  1. no; not so
  2. (bound form) not; un-
3 認為 rènwéi to believe; to think; to consider; to feel
=4 你 nǐ you (informal, as opposed to courteous 您 nín)
=4 你 nǐ you (Note: In Taiwan, 妳 is used to address females, but in mainland China, it is not commonly used. Instead, 你 is used to address both males and females.)
5 該 gāi
  1. should
  2. ought to
  3. probably
  4. must be
  5. to deserve
  6. to owe
  7. to be sb's turn to do sth
  8. that
  9. the above-mentioned
6 改變 gǎibiàn
  1. to change
  2. to alter
  3. to transform