for these past two years i have been able .
问题描述：
for these past two years i have been able .
for these past two years i have been able to deliver only half my load because this crack in my side causes water to leak out all the way back to your master's house.
常会看到这么长的句子,非常头大.
请问这句子成分是什么?主谓宾?复合主从再主从?
答
for these past two years时间状语I主语have been able to deliver 谓语only half my load宾语because.house 原因状语从句————————————————————————原因状语语从句里面：this crack主语...