what is the meaning of the suffix "고 있잖아"?
what is the meaning of the suffix "고 있잖아"?

Question

Answer

'고 있잖아' means 'I'm doing something'
we use this suffix in the conversation. let someone(who conversate with me) know what I'm doing now.

ex) 공부하고 있잖아. I'm studying now.
      쉬고 있잖아. I'm taking a rest now.
      라디오 듣고 있잖아. I'm listening to the radio.

understad? ^^

Answer

"고 있잖아" is used to put emphasis on the saying.
나 공부하고 있어 - I'm studying
나 공부하고 있잖아 - You know I'm studying or You see I'm studying