I am wondering this in light of this question.
I don't even think it is a duplicate, but, and I hope I am not rude here, it is such a basic question, that I wonder why one would ask it here. Simply looking for "です" pretty much anywhere would answer the question. And any reasonable Japanese learning resource likely would cover it among the absolute basics.
On the other hand, I can appreciate that as a beginner, there is no way to distinguish between common and complicated parts of the language and not everyone learns using a textbook.
And in general, I wouldn't want to make someone feel unwelcome for asking a "too simple" question.