כתבתי "האם אתה אנגלי?" והוא סימן שזה טעות
Sounds correct you can report it
singular with audio: https://forum.duolingo.com/comment/26562497
why can't I say את אנגלי?
I think that אנגלי is masculine and since it gives את and not אתה it is looking for the feminine which is אנגלייה
Would "?את אנגלית" be correct?
(in this case)
When do you use אנגלית and when אנגליה ?
The word for the English language is אנגלית.
And אנגליה can be the actual country of England or the adjective in *She is English."
Duo said I had a typo, however the answer duo was looking for was not one of the words I could choose from!