So do I和So I do的区别和用法一、So do I的用法该结构主要用来说明前面所说的情况也同样适用于后面的人或物,意为“也一样”。该结构中的助动词 do 根据前文的情况也可换成 is, am, are, was, were, does, did, can, could 等。如:He passed the exam, and so did I. =He passed the exam, and I passed the exam, too. =Both he and I passed the exam. =He and I both passed the exam. 他通过了考试,我也通过了考试。/ 他和我都通过了考试。又如:They went to the zoo yesterday. So did we. 他们昨天去了动物园,我们也去了。但是如果前面所述情况为否定式,则用neither, nor引出倒装句(此时不能用so)。如:He couldnt do it, and neither could she. 他做不了这事