在一般现在时中,当主语为第三人称单数时,谓语动词如何变化?并举例(5个)

be动词就是变成 is.she is a good girl.实意动词一般加S ,有些特殊的加es 例如 go.如果动词前边有aux 动词不用变.she loves playing piano.she goes to school by bus.she wants to buy a car.she wears a hat today...