i will be very happy because you are coming back.中的because 可以直接跟在句子后面吗?

i will be very happy句子在这里断开,because you are coming back.是一个原因状语从句,由because引导那如果是 my mom said tahtshe would be very happy because i am coming back.中也要断开吗？my mom said tahtshe would be very happy because i am coming back大范围来讲是个宾语从句。that引导的后面的整个句子是宾语那你的意思是可以直接跟的吗？呵呵，我说的断开是你意思理解上要明白主谓宾，明白句子结构，不是真的断开加逗号呀呵呵额 那到底要不要加逗号或者什么的啊在第二个句子里··不加