for these past two years i have been able .

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?