Gerçek onun hakkında bir şey bilmememdir.
- The truth is that I don't know anything about it.
Fark ettin mi, bilmem; ama Tom senin kızına abayı yakmış gibi duruyor.
- I don't know if you've noticed, but Tom seems to have fallen in love with your daughter.
I dunno the answers to any of those questions, and you dunno and he dunno either.
... grandchildren do not know how to read cursive writing ...
... you may not know about me. ...