Sarah had her washing machine repaired the day before yester
Sarah had her washing machine repaired the day before yesterday,didn't she?
能不能分析一下这句话的语法,为什么不说sarah repaired her washing machine 而要说had her washing machine 而把repaired 放后面然后didn’t she 的语法能不能分析下,为什么要这样说,什么意思?还有为什么说had 是实意动词 为什么不是repaire