yet one of DL correct answers is : She doesn't have sisters. So the answer can be both 'sister' and 'sisters', at least that what I think from DL's answers.
Agreed. In English it sounds much more natural to say "she has no sisters" than "she has no sister".
Goodness gracious! Schwester IS singular in this sentence but in English, I don't have sisters means the same thing as I don't have a sister. So its not counted as wrong. Let's put this behind us now :-)
Shouldn't sister here be in singular? Because the plural of Schwester is Schwestern... am i wrong?
In English "she has no sisters is a correct translation of this. It's more commonly used than "she has no sister."
I wrote "she doesn't have any sisters (plural)" and I was marked right... does it mean both "keine Schwester" and "keine Schwestern" mean the same and are interchangeable?
Are you sure? I wrote 'She doesn't have any sisters' (which is correct) and I was marked wrong. : /
In English, you can use either "sister" or "sisters", but it's more natural - or at least more common - to say "sisters", so that is accepted as a translation. But the fact that you can interchange them freely in English doesn't mean you can do the same thing in German.
Duolingo is indeed wrong here (following a number of posters below), because the translator is unfamiliar with colloquial English, and thinks that the student has incorrectly noticed that the sisters are plural rather than singular. But it is an "understandable" teacher error at an elementary level.
I was marked wrong for "She doesn't have any sisters." This is natural english and should be right.
why when you choose the answer, the right one is: "She doesn't have a sister" and when you write the answer, the right one is: "She doesn't have sisters"?
Sorry but I need you to explain me because English is not my first launguage. Why its "She doesn't have sisters" and not "She doesn't has sisters"??
Well, let me see if I can help you. When you use the auxiliar "Does", then you have to use the regular form of the verb. In this case, "Have". You can say "She has" or "She hasn't", but if you use the aux, then would be like this "She does have", "She doesn't have". The same applies to other verbs. Example: "He eats", or "He does eat". In the last, note that the "s" is not used. Hope it helps you.
When there are two verbs, only the first one changes to match the subject. You can almost think of the second verb, in infinitive form, as part of the complement: "Have any sisters" is the thing that she doesn't do.
I was marked wrong for "She doesn't have any sisters ". It told me the "right" answer should be singular. .. She doesn't have any sister. Is just wrong in English. .. I reported that it should be accepted.
I'll just say kein and its other forms are the opposite of ein.
Whereas ein implies that there is a thing. Kein implies a lack of a thing.
Duolingo translating it as doesn't, not and etc irks me a teeny bit. But for a smoother translation, it's correct.