弄不懂

nòngbudǒng
unable to make sense of (sth)

CEDICT

Entry Composition

=1 弄 nòng
  1. to do
  2. to manage
  3. to handle
  4. to play with
  5. to fool with
  6. to mess with
  7. to fix
  8. to toy with
=1 弄 nòng old variant of 弄 nòng
2 不懂 bùdǒng
  1. (as a verbal complement) unable to comprehend (when seeing, hearing, etc.); cannot
  2. to not understand
  3. unable to comprehend (when seeing, hearing, etc.); cannot

Related entries

搞不懂 gǎobudǒng unable to make sense of (sth)
我真的搞不懂为什么。

I really can't figure out why.

Source: Tatoeba