although和什么词连在一起也是但是的意思

不能和but连用
但是可以加上still和yet

I Give you some examples, May be they are useful for you,

That book is good although faulted.
那本书虽有缺点，仍不失为好书。
Although I am studying , he is playing.
虽然我在读书，他却在玩
They are ambitious although they are poor.
他们虽穷却很有志气
They are generous although they are poor.
他们虽穷却很慷慨
They go swimming, although it is rain.
尽管天在下雨，他们还是去游泳了
Although he is over 70 he is still active.
虽然他年逾七十，可仍然很活跃

still
example she is still pretty ,although she is over 70
yet也可以

可以什么词都不用，直接加句子！但是绝对不能用but
yet可以的，still不知道

是yet吗？