as well as,rather than,not but(nothing but),做主语,谓语都用单数还是复数,每

as well as,together with,alone with都只强调前面的主语,所以后面谓语用单数．This kind of beverage,as well as cola,tastes good.（注：taste虽然是动词,但在英语中主语是物,那被看作为系动词）
rather than意思是”而不是”等于instead of一般不会用语开头．instead of用语开头更多．Rather than going to the cinema,i went to.yesterday.
not but意思是”仅仅”等于only.he has nothing but good luck.