not only but also also可以去掉吗

1.also的确可以去掉,而且句子意思没有任何变化.
2.因为该结构是一个并列连词,而also只是一个副词,but才是真正体现并列的连词.且因为前面的not only已经提示了这个固定短语,所以只做副词的but可以省略.
3.如：I am not only a teacer but also a father.
= I am not only a teacher but a father.