"Hast du den Bär gesehen?"
"Bär" sounds like "Bar" in the audio. For some reason I can't report the audio as poor in this question so despite the specific instruction not to report mistakes here, I have no choice!
You can always use the feedback button on the very left side of your screen.
Anyway, it's not just the audio that's wrong. It should say "Hast du den Bären gesehen?"
Thanks Katherle. Can I just clear up one thing. Is Jungs only correct as plural in nominative, but Jungen in the other cases?
Ah... hadn't noticed the feedback option. Many thanks! If it is indeed "Bären" here, I wonder how that mistake could have happened. Surely the questions must be set by native German speakers?
My guess is that most sentences in the exercises were computer-generated, although they were at some point probably proofread by somebody who is proficient in German. There are grammatical phenomena that even native speakers frequently get wrong. In German, these include the n-declension (words like Bär), the use of the Konjunktiv (subjunctive) and the genitive case after prepositions. Languages are always changing, and it's quite likely that in fifty years from now, the sentence "Hast du den Bär gesehen?" will be regarded as correct. But we haven't reached that stage yet :).
Concerning computer generated sentences, I agree. Concerning systematic proof reading, I have some doubts...
@Katherle: Some rumours say, the original Latin phrase was used in gladiator fights and sounded more like 'in dubio pro leo'. ;-)
Pardon, but why would't you only use that for plural? Couldn't you use it as stated int eh question to mean just one bear?
Your question has already been answered. There is no plural here. "Bär" is a weak noun and therefore gets an 'en' ending in all cases except nominative.
Huh. I don't think I've been introduced to the concept of weak/strong nouns yet; that cart's before the horse.
@Zelbinian: Yes, it's unfortunate that they're outsourcing this kind of stuff into the discussions. I was a bit shocked to learn that the decision makers at duolingo don't consider decent grammar introductions a high priority.
Per conjugation of sehen, du would seem to take siehst (gesishst?) - pourquoi (ge)sehen? (Please excuse any absurd ignorance, I'm very new to German.)
"gesehen" is a participle. It's the same for all pronouns.