because和so能连用吗

because和so能连用吗 because 和so可以连用吗Because和so到底能不能连用because和so可以连用吗so和because能连用吗

so 与because不能连用如He didn't come to school yesterday because he was ill.或He was ill ，so he didn't come to school yesterday.昨天因为他生病了，所以不来学校。

because和but可以连用吗