Translation:वह नहीं तैर रहा है ।
So in negative sentences in present continuous है can't be omitted?
Duolingo has, so far, treated this issue haphazardly.
Same question has just popped up in my mind. Following..
Sometimes nahi comes before the verb and sometimes after. what is the rule/
My understanding is that है is optional in negative sentences. Which means that sometimes it's there and sometimes it isn't.