Emma H. answered 05/09/19
English Writing Assistant and Tutor
Hi there,
In my understanding, "でも" is used in the beginning of a sentence to illustrate a counterpoint. An English parallel would be using "however" before starting a sentence. On the other hand, "けど" can be used at the end of a sentence like you mentioned, or it can be used to connect two sentences. For example, you could say "あしたかいもににいきたいですけど、あしたはやすみです。" or in English, "I want to go shopping tomorrow, but tomorrow is a holiday." Beyond the placement of the words, I believe they mean the same thing. Just be sure that the placement is grammatically correct.
Hope this helps!
-Emma