is there a difference between "is he coming now?" as in at this moment, and "is he coming now?" like he wasn't coming before but is now?
Not in writing. But in spoken language you could, of course, stress a certain word for emphasis.
tack, same as in English then
So could you translate this as "Is he now coming" to mean he wasn't coming before but is now?
Could this be, "He is coming now?" I got dinged on it...
The German counterpart of 'nu' is 'nun', which means now too