Questions about "geht's", "geht es".
Ok...I have this sentence in a lesson "Meinen Mitbewohnern geht's schlecht, ihr Auto ist kaputt."
My first question is what makes this dative? I cannot find "gehen" on any list of German dative verbs. Yet, every exercise I come across uses "geht's" in the dative case. Why?
Why the apostrophe? Yes, I know it is a contraction of "geht es", but ins is a contraction of "in das"; im is a contraction of "in dem"; zur is a contraction of "zu der". They don't use an apostrophe. No other contraction I've run across uses the apostrophe, like English does. In fact, DUO specifically has told us that German does not use an apostrophe in contractions. Yet, here is "geht's" using an apostrophe. Why is it that "geht's" is seems to be unique in using the contraction apostrophe?