The rope was short as he cut some away before to tie the fish.
原文出自人教版高中英语教材选修三。
为什么介词before后面接了动词不定式?
这里的 before 不是介词,而是副词(意思是“以前”,而不是“在……以前”),其后的不定式是目的状语。
句意:The rope was short as he cut some away before to tie the fish.
绳子很短,因为为了系鱼他之前把绳子剪掉了一些。