です vs だ
I just encountered the sentence 雨ですからかさをかしてください again and as I was typing I thought it felt a bit off.. I thought です could only be used at the end of a sentence? My first instinct was that it should be 雨だから but now I've started to doubt myself..
So, my question is: can です only be used at the end of a sentence, or can it be used at the end of a clause as well? Am I making things up here?