我们知道从句就是用一个句子代替主句里的成分,代替主语叫主语从句,那么,在一个复合句里可以嵌套无数个从句,正如Mother said that you could do what you liked to do.里的,在that you could do what you liked to do这个宾语从句里嵌套了一个 what you liked to do宾语从句,做could do里的do的宾语.
Godness me! Do not tell me that you want know everything in a night from the net. It is not very easy for me to teach adverbial clause to somebody who knows nothing abaut it. We are not Yehovah.We are not able to do everything!