if

Used to say that one thing happens or is true only when another thing happens or is true.

• If it rains tomorrow, we'll stay at home.
  Yarın yağmur yağarsa evde kalırız.
• Call me if you need any help with the move.
  Taşınmada yardıma ihtiyacın olursa beni ara.

Used to talk about a situation that is imagined, unlikely or not true.

• If I had more money, I would travel around the world.
  Daha çok param olsa dünyayı gezerdim.
• If you had told me, I would have helped you.
  Bana söyleseydin sana yardım ederdim.

Used to mean whether, especially after ask, know and wonder.

• She asked me if I wanted a cup of tea.
  Bir fincan çay isteyip istemediğimi sordu.
• I wonder if the shop is still open.
  Acaba dükkân hâlâ açık mı?

Used to make a polite request or suggestion.

• If you'd like to follow me, I'll show you to your room.
  Beni takip ederseniz sizi odanıza götüreyim.
• I'd be grateful if you could call me back today.
  Bugün beni geri ararsanız sevinirim.

Used to add a small criticism or difference; although.

• The room was comfortable, if a little small.
  Oda biraz küçük olsa da rahattı.
• It was a good result, if not a perfect one.
  Mükemmel olmasa da iyi bir sonuçtu.