"Some dogs drink water."
Translation:Manche Hunde trinken Wasser.
I guess you could thing of etwas as being something, or somewhat ... or as "some" in phrases like etwas Milch (some milk), etwas Schlaf (some sleep), or etwas Geld (some money) ... with those collective kind of things. But with countable plurals one could use einige or manche ... (meaning some). Hunde (dogs) would be countable plurals ... perhaps this might be a helpful general guideline to keep in mind.
In Deutschland unterscheidet man zwischen Tier und Mensch, wenn es um Nahrungsaufnahme geht. Tiere saufen und fressen, Menschen trinken und essen! Es muss hier also korrekt heißen: Manche Hunde saufen Wasser. Kein Deutscher würde sagen: "Mein Hund isst ein Würstchen ". Es heißt "Mein Hund frisst ein Würstchen".
"Jemand" means "somebody", and you can't say "Somebody dogs drink water".
Like the articles, "manch-" (some) has to agree in gender/number (masculine, feminine, neuter OR plural) and case with the noun it refers to. Here, it refers to "Hunde" (dogs), which is:
2) nominative (it's the subject of the sentence, and the subject is always in the nominative case).
In the nominative plural, "manch-" gets the ending "-e": manch-e. See this table: http://www.canoo.net/services/OnlineGrammar/InflectionRules/FRegeln-P/Pron-Indef/Pron-manch3.html?lang=en
Manche means a certain subgroup, yes.
There's no context given, but perhaps this is a response to a question asked of someone who owns twenty dogs, where someone wants to know what those dogs usually do on hot summer afternoons.
"Some dogs drink water (and others just lie in the shade)."
Ich - trinke
Du - trinkst
Ihr - trinkt
Er, sie, es - trinkt
Wir, Sie - trinken
Subject of the verb determines the verb's conjugation.
Given this post is a year old and you have at time of writing an 18 in German, I'm guessing you probably figured that out by now, but commenting for people who run across this comment later.
Why is mancher incorrect?
mancher can be
- masculine nominative
- feminine genitive
- feminine dative
- plural genitive
Basically, the cases where the definite article would be der.
But Hunde is plural -- and, in this sentence, nominative.
So you need plural nominative manche before it. Not plural genitive (wrong case) or masculine nominative (wrong gender) or feminine genitive/dative (both wrong).