should be

[emsr2d2]

I just wanted to learn how to use 'should be' the way they did.

Now that you have seen the correct transcript of the words, do you see that "should be" is not a tag question but an integral part of the sentence?

That space toilet is where my coffee table should be.

[Offroad]

Instead of 'where' I heard 'on'. That's why I raised the question.