没有so on,但是有and so on的用法。and so on意思为诸如此类、等等,作形容词作“别的,其他的,另外的”解时,常用来修饰复数名词或不可数名词,侧重于口语化使用。and so on 是一个短语,意思是等等,用在举例的末尾,意思是举例未完。
Others are interested in art, music, books and so on.
其他人对艺术、音乐、书籍等感兴趣。
Right now in Congress, they're fiddling around with the budget and so on
此时在国会,他们正就预算案等等瞎折腾。
They have a huge selection of perfect, slightly imperfect and discontinued cookers, fridges and so on.
他们有大量完好的、略有瑕疵的以及已停产的炊具、冰箱和其他货品可供选择。