ein Mann can mean either "a man" or "one man" -- the words "an" and "one" did not split up in German as they did in English, nor did the word "an" lose its "n" before words that start with a consonant.
So where English now has "a, an, one", German has just one word (though it varies by gender, number, and case).
along with related forms such as dative ("Ihnen") and possessive ("Ihr, Ihre, Ihren..."). (But not the reflexive pronoun - that stays lowercase as "sich".)
Also, when you are writing letters, you may optional capitalise "Du" and "Ihr" and their forms ("Dich, Dir; Dein, Deine, ... / Euch; Euer, Eure, ...") for politeness.
- ich trinke
- du trinkst
- er trinkt / sie trinkt / es trinkt
- wir trinken
- ihr trinkt
- sie trinken / Sie trinken
You have to choose the right form of the verb depending on the subject.
A bit like how it's "I am, you are, he is" in English and you can't just say "I is, you am, he are" or whatever.
ein Mann trinken is not correct German.
ein Mann trinkt means "a man drinks".
There is a sentence in this course die Männer trinken Wasser which means "the men drink water" -- but that has a plural subject (the men) and not a singular one (a man).
trinkt and trinken are both present tense, but trinkt is for a subject of "he, she, it" and trinken for a subject of "we, they" or polite "you".
Have a look at the tips and notes for the very first unit of the course -- https://www.duolingo.com/skill/de/Basics-1
Your answer is in the first paragraph of those notes: "In German, all nouns are capitalized."
Please always read the tips and notes before starting a new unit of lessons.
The tips and notes are currently available only on the Duolingo website, not in the mobile apps (except to some test users -- they may be available to more users there in the future).
So I'd recommend learning German via the website, not via an app, though the app may be useful for refreshing units that you have already learned.
(Finally, if you visit the website on a small screen, e.g. on a smartphone browser, you may not see the tips and notes, either, as the website tends to look like the app version on a small screen. For best results, use a PC/Mac, or at least a tablet.)
Ein mann drinkt is wrong.
Ein Mann trinkt is a correct German sentence and it can be translated to "A man drinks." and to "A man is drinking."
German does not make this tense distinction, so the same German sentence can be translated into two different English sentences depending on the context (repeated event versus single event).
I wrote "a man is drinking". This was noted wrong, but I believe it should be correct.
It is a correct translation. Did you have a listening exercise, perhaps, instead of a translation exercise?
Do you have a screenshot showing the question, your answer, and the error message?
So apparantly it marked me wrong when my answer was "A man drinks"
Since we can't see the question you were asked to answer, I'm going to guess that you had a listening exercise ("type what you hear"), not a translation exercise.
If that was not it, please post a link to an uploaded screenshot showing the question, your answer, and the error message.
Why 'a man drinking' is a wrong translation?
Because "A man drinking." is not a correct sentence in English.
(If you think it is, I highly recommend that you visit an English course first before trying to learn another language from English. Having a strong foundation in English is presumed on this course.)
When you right' eine man trinket' in comes up wrong
Indeed. Not a single word of those is spelled correctly.
It should be ein Mann trinkt.
Mann is a noun, so it has to be capitalised. It has two Ns at the end.
Mann is masculine, not feminine, so you have to use ein before it, not eine.
The ending for "he, she, it" is simply -t, so the verb form is trinkt, not trinket.
I wrote "A man is drinking" I don't understand why it is not an acceptable translation
But it is an acceptable translation.
Perhaps you made a typo? Or you had a listening exercise rather than a translation exercise?
Please show us a screenshot of your answer being rejected -- upload it to a website (e.g. imgur) and tell us the URL.
Was correct answer
Was it really? Small typos often go unnoticed.
Nobody can see what you wrote, so if you have a question why a sentence was not accepted:
- report it as "my translation should be accepted"
- copy and paste (do not retype!) your entire answer into a comment
or even better
- make a screenshot, upload it to a website somewhere (e.g. imgur) and put the URL to the image into your comment.
why didt take like a correct answer?
That's impossible to answer without seeing what you wrote.