我不是百分之百确定。

I'm not one hundred percent convinced of that.

Source: Tatoeba

Sentence Composition

1 我 wǒ
  1. I
  2. me
  3. my
=2 不是 bùshì
  1. no
  2. is not
  3. not
=2 不是 bùshi fault; blame
3 百分之百 bǎifēnzhībǎi
  1. a hundred percent
  2. out and out
  3. absolutely
4 确定 quèdìng
  1. definite
  2. certain
  3. fixed
  4. to fix (on sth)
  5. to determine
  6. to be sure
  7. to ensure
  8. to make certain
  9. to ascertain
  10. to clinch
  11. to recognize
  12. to confirm
  13. OK (on computer dialog box)