speak 加不加s

speak 加不加s he speak englishi very well.speak加不加s? Shespeakchineseandenglish SPEAK为什么加S 为什么Mrs li can speak English中的speak后不加s he can't speak english .为什么speak不加s She can speak Englist speak为什么不能加S speak to sb over one's shoulder Don 's be s____.Speak loudly 三单speak能加s吗 speak在什么情况下加s, 为什么这个speak 不用加s呢? action speaks/speak louder than xxx 这里的speak 加不加S 如题,也就是问,这里的action做不做第三 人称单数? Speak speak speak speak speak He can speak english,这句是第三人称单数为什么speak不加s?