Bunun seni bu kadar üzeceğini bilseydim bundan bahsetmezdim.
- If I knew it was going to upset you so much, I wouldn't have mentioned it.
Eğer onun adresini bilseydim, ona bir mektup yazardım.
- If I knew her address, I would write her a letter.
... It was driven by a desire that someone find what you knew to ...
... And if you really think about it, no one knew ...