没有老师的帮助，我会落到他人的后面。翻译

具体语境没有说清楚，所以时态上可以有很多种选择
I would have falled behind others but for the teacher's help.
或者：
I would fall behind others without the teacher's help.

楼上是典型的中文式英语
应该是
I would fall behind others without the help of teachers'.

I will fall behind others without teacher's help.

Without my teacher's help, I would fall behind.

Without the help of teacher,I would not have catch up others.

支持二楼得