Hello - I am confused about the construction with etre and en retard. Are both the constructions below correct? From my understanding of the video and Chris' reply to another question, only the 2nd one is correct. However, the first is used throughout the lesson.
1. Je suis arrivé dix minutes en retard. [construction in lesson]2. Je suis arrivé en retard de dix minutes. [construction in video]