复数形式是families。还有值得主要的是family是个要根据情况而定的单复数名次,当泛指整个家庭时要用成单数,如:His family is a great one. 而指具体的每一个家庭成员时则要用成复数:His family are music lovers.
希望楼主能采纳!谢谢!
当整体讲用单数---his family is a big one
当个体讲用复数---his family are all watching TV
family作主语时,如果作为一个整体看待,谓语动词用单数形式,如果就其中一个个成员而言,谓语动词用复数形式。如:
His family is a happy one.
The whole family are watching TV.