请问 due to, because ,for ,as 作为因为怎么区分？

Question

如题，总是分不清，谁能举例说明，它们之间的区别，最好不要用字典

Answer 1

due to 后面不加句子；for是等立连词，是连接并列的单词，短语，从句和分句的，eg: he decided to leave at dawn, for he had many miles to cover.；because和as都是从属连词，是引导名词性从句和状语从句的，eg: (1)as i haven't read the book, i can't tell you anything about it.(2)i can't tell you anything about it, because i haven't read the book.
这是我的理解，不一定对，但是我觉得学英语最重要的是语感，多做些题目。