当主语后面紧跟着 with sb、together with sb、as well as sb这样的结构时，谓语动词的数要与前面的主语保持一致，也就是俗称的 “就远原则”。
1. with(和...一起)
结构：A with B，或者A，with B
谓语动词的单复数与 A保持一致。
例如：The teacher with some students is playing basketball.老师和几个学生在打篮球。（谓语与“The teacher”一致）
2. together with(和...一起)
结构：A together with B或者A, together with B
谓语动词的单复数与 A保持一致。
例如：The teacher together with some students is playing basketball.老师和几个学生在打篮球。（谓语与“The teacher”一致）
3. as well as(还有...，除了...以外还有...，也)
结构：A as well as B
谓语动词的单复数与 A保持一致。
例如：Tom as well as his friends likes reading.
汤姆和他的朋友们都喜欢阅读。（谓语与“Tom”一致）
✪✪对比：A and B结构
and是并列连词，连接的A,B是并列主语，所以主语是A和B累加关系，一般情况下谓语动词用复数。
The teacher and some students are playing basketball.老师和几个学生在打篮球。
而with，together with, as well as,是介词性质，都表达是伴随、从属关系，而且它们的位置比较灵活。如果我把它们放到正常语序的位置上，大家就一目了然了。
1.The teacher with some students is playing basketball.
=The teacher is playing basketball with some students.
2.The teacher together with some students is playing basketball.
=The teacher is playing basketball together with some students.
3.Tom as well as his friends likes reading.
Tom likes reading as well as his friends .