How can you tell whether they are saying 'her', 'them' or 'you' when speaking?
If you just hear the sentence and can't tell if it is spelled with a capital or lower case 's', then there is no way to tell without the context. So if you just heard someone say this sentence by itself, you would have no way of knowing which meaning it has.if you see it with a capital 'S', then it would mean 'you,' but with a lower case 's', it could mean either her or them. It could actually mean 'it', if it is referring to a feminine noun (e.g.- "Ich kenne die Stadt." "Ich auch. Ich kenne sie.")
True, but in real life you would most likely hear this as part of a conversation. Unfortunately this is an unavoidable flaw in the duolingo format.
For them or her you would have to consider the context in which it was used. For formal "you" it is always capitalized "Ich kenne Sie."
Oh wow that was stupid I was thinking Kennen should be conjugated for her or you
can someone explain to me why kenne will sometimes come before or after the ich
It can be the first word in the sentence if it is a question (Kenne ich sie?=Do I know her?), or with the German case system the object can go in the first place in the sentence: Sie kenne ich=Ich kenne sie, but putting 'sie' first puts emphasis on the fact that 'she' is the person that you know. The closest English equivalent would be to say "It is her that I know" or just to put verbal emphasis in the word 'her' when saying, "I know her."
what is the difference between Kennen and Wissen? Is there any difference in their contextual use?
Kennen is used when one wants to say they know a person or a place or particular object. " Ich kenne sie." "Du kennst Berlin." Wissen is used to express one knows a fact or knowledge. "Er weiß Englisch." "Ich weiß seine Muttersprache."
I'm going to add to this to be a little more clear: Kennen would be used in reference to a noun or pronoun and wissen is for what is going on with things (usually expressed with verbs or subordinating clauses). e.g., "Ich kenne das Bier." vs. "Ich weiß, wie Bier schmeckt." (I know that beer. vs. I know how beer tastes.)
On possible translation of "kenne", per Duolingo, is "know of", so I thought I'd give it a try and put "I know of her", which was counted as incorrect. Can someone confirm or deny that's accurate?
I wouldn't write the way you did just because it was wrong in English. It is impossible to say, "I know 0F her". Unfortunately sometimes you can see situations like this her (Duolingo). My answer "I know her" was correct according to Duolingo.
It's wrong in English depending on the message you are meaning to convey. E.g. "Do you know Helen?" "I don't know her, but I know of her."
Could this phrase be translated to mean either one?
As far as I understand the phrase "Ich kenne sie" means "I khowher "(in sg.) and "I know _ them" (in pl.), but not "I know OF her/them.
I appreciate the response Helen. Do you know how I would said "I know of her", for example? If that doesn't translate exactly, how would one express that idea?
Unfortunately I can't give you a definite answer (German is not my native language) I quite understand you saying "I know of her", but how this phrase may be translated into German, I don't know (
How does "Kennen" declined for the rest of pronouns?? Like "Ich kenne" " Du kenst" and....