what is the meaning of "인거죠" ,"했다면","없다면"???
I don't understand the meaning ,the structure and how to use of "인거죠" "했다면","없다면 " from these sentence:
+) 사랑인거죠.
+) 진정 사랑했다면 진정 후회 없다면.

Question

Answer

it is a part of lyric 사랑은 다 그런거래요

아파야 사랑인거죠 
If that hurt you, it is love.
진정 사랑했다면 진정 후회 없다면 그것으로 된 거죠 
If you really loved someone without regret, that's all right.