关于副词的位置有人说副词在助动词后面,那么应该是I also don't like it还是I don't like i

also 1.属正式用词,主要用于肯定句或疑问句,一般不用于否定句 (否定句可用 either),它在句中通常放在实义动词之前,特殊动词 (动词be、情态动词、助动词)之后,有时也放在整个谓语前面或放在句首或句尾 (较少见,且多半是因为强调之故).
如：I’ve also read the book.我也读过这本书.
This room was also dirty.This room alsowas dirty.This room was dirty also.
Also this room was dirty.这个房间也很脏.
2.有时由于also 位置不同,可能会导致句子含义不同.
如：We also regard him as a great writer today.我们也 (同别人一样)把他看成当今伟大的作家.
We regard also him as a great writertoday.我们把他也看成当今伟大的作家.
We regard him as a great writer also today.我们仍 (同其它时候一样)把他看成当今伟大的作家.
3.在简略答语中,习惯上不用also,如一般不说 I also,但可说Me too,You too等之类的.
如：A：I’m tired.我累了.B：Me too.我也是.
B：I also.(误)

副词用来修饰形容词的。当两个形容词放一起，后面的一个形容词就要变成副词了、

两个都不对，正确的应该是I don't like it either.

在否定句中，一般不用too，用either,而且，副词修饰动词放在其后