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.
Adresini bilseydim ona yazardım.
- If I knew his address, I would write to him.
... And Google knew that this was about the Eiffel Tower. ...
... if we knew everything about you, we could provide services to you and we could know ...