however,but,therfore,so,and

however与but的区别
however的用法,应该有个从句什么的,具体讲一下,还有no metter how是怎么回事
therfore和so的区别
and的用法(特殊用法:比如说什么时候谓语动词用单三)

麻烦知道的帮帮忙,讲的详细的追加分

1. however用在两个完整句子之间. 通常放在句首,并且它后面一定要加逗号.
She is nice. However, she is not honest.

2. but用在两个句子或者词语之间,通常放在句中,前后不用加任何标点符号.
She is nice but she is not honest.

3. therefore是比较正式的说法.通常放在句首,它后面一定要加逗号.
She plays basketball. Therefore, she grows up fast.

4. so习惯用在口语中
She plays basketball, so she grows up fast.

however后要打“，” but不用打逗号

在意思上，however和no matter how的意思是一样的，但是however可以引导名词性从句（宾语从句，定语从句）和状语从句，但是no matter how只能引导状语从句。