['contradiction']
But, by the time I had reached the top of the stairs, he was out of sight. 
אבל, עד שהגעתי לראש המדרגות, הוא נעלם מעיני. 
He was still standing upstairs by the time I got there.
הוא עדיין עמד למעלה כשהגעתי לשם. 