as well 與too 用法類(lèi)似,都用在肯定句,并位于句末,too經(jīng)常是和句子隔開(kāi),而as well 不必,例如 He likes chocalate as well./ He likes chocalate,too.
as well as 與not only...but also 意思差不多,都是不但,而且的意思,但主謂一致是需要注意,例如 I,as well as my parents,am going to visit my granny this weekend.（謂語(yǔ)和I 保持一致）
Not only he but also Tom are doctors.(謂語(yǔ)用復(fù)數(shù))