Yaşlı çift yan yana oturuyordu. - The old couple sat side by side.
Yaşlı çift yan yana oturuyordu.
The old couple sat side by side.
Biz yan yana yürüdük. - We walked along side by side.
Biz yan yana yürüdük.
We walked along side by side.
The soldiers of XX and YY were fighting side by side against a common enemy.