Complex sentence: After this, the movement begins to modulate back to E major for a repeat of the exposition, however, after the first repeat, just as it seems to settle again in E major, the development begins in the F minor.
Split into simpler sentences: After this, the movement begins to modulate back to E major for a repeat of the exposition. However, after the first repeat, just as it seems to settle again in E major, the development part begins in F minor.