why which that whether who whom的区别?

i want to know why you love me,宾语从句

i like this one whick my mother likes too.定语从句

i like it that you don't like. 定语从句(和上面的差不多,一般能用which的也能用that,但特殊情况,比如说主句中有it\any\no等等单词则必须用
that.)

i don't know whether i like it. 宾语从句

i know who kill him. 宾语从句(who作主语,谁杀了他)

i know whom him killed. 宾语从句(whom作宾语,他杀了谁)

neither nor 和either or都是就近的,
比如neiher they nor he likes it.
either he or they like it.

why 为什么
which哪个
that那个
whether是否
who谁，做主语
whom谁，做宾语

Neither...Nor...和Either...Or...都是要用就近法，具体的用单数还是复数就要看离谓语动词最近的那个词了

which,that,who,whom可用于定语从句，其中which(物),that(物/人),who(人),在从句中既可充当主语，又可充当宾语，而whom只充当宾语，并可省略。
that，whether,who,which,why 可用于宾语从句
I do not know who did it
why he did it
whether he did it
(that)he did it
which is right.
Which,that, who,whether,why