"How is his wife doing?"
Translation:Wie geht es seiner Frau?
I think that in the language learning process it's good to find common and easy phrases, sentences or questions which will act as, I would say, the "source" ones.
For example, in the case of "wie geht es..." I have always in my mind "wie geht es dir?" to see that dative was used. I will always remember this question so if I was ever confused which case I should use, I would bring this question to my mind and analyse it.
I hope that makes sense! :)
How can I write a correct sentence when Duolingo does not give me the word blanks I need. I used geht and although my attempt was marked as correct but was told I'd made a spelling error because I should've used gehts. I'd wanted gehts but it wasn't there so I was mislead into thinking geht must be the correct solution because that's all Duolingo gave me to use.