这个句子对吗if I had three day"s life I would meet some people tha

原句：If I had three day"s life I would meet some people that it is important for me.
有两处错,首先life作为生命是可数名词,而three days在这里做定语,前面要加冠词,这里表一般情况的假设,还是用不定冠词a好.改为a three-day life或是a three days‘ life.
其次,后面的that在定语从句中做主语,后面的it就多余了,而谓语也应该跟随some people,同时跟随虚拟状态用were.
综上所述.
改句：If I had a three days’/three-day life ,I would meet some people that were important for me.