(no subject)

[krepsen.livejournal.com]

"Я не знаю" means "I do not know" but if you want to add "do you" what will that be?

Comments

[upwave.livejournal.com]

"Я не знаю, а ты?"

[alexmgimo.livejournal.com]

Я не знаю, а ты? or Я не знаю, а ты знаешь?
(if your question was: I don't know, do you (know)?

[farnortheast.livejournal.com]

"Я не знаю. А ты?" = "I do not know. And you?" (word for word) or "I do not know. Do you?"

[agvares.livejournal.com]

it's a simple tag question.

"Я не знаю, а ты?" or "Я не знаю, а ты знаешь?"

Using specific intonation, it can be "Я не знаю... знаешь?"