Not only is he a scientist,but also he is a painter.这句话与

题目

Not only is he a scientist,but also he is a painter.这句话与
Not only did I make a promise,but I also kept it.
这两句话的后半句不是用正常语序么.为什么第一句he置于but also之后,而第二句I置于but also之间?
要说出个所以然来,不要用诸如“两个都一样,无所谓~”搪塞一下.

答案

标准的书写是要按第一种,第二种是口语化