At tökezleyip şovalyeyi düşürmüş olmalı.
- The horse must have stumbled and have toppled the knight.
O bir el arabası üzerine tökezledi.
- She stumbled over a wheelbarrow.
I always stumble over verbs in Spanish.
... And some of you have stumbled upon it and found it. ...
... but I seem to have stumbled upon the ballroom ha well ...