When does the dative come into play and when does the accusative come into play?
So sometimes I don't know whether I should write "ein" or "eines," "von" or "dem," "mir" or "me," etc. What's the logic behind this?
(me-me test is not always applicable)
This depends on the verb
someonem give, say, give, …
someonen see, hear…
or from the preposition.
These always need the battery: to, through, for, against, without around, along
And this is the Dativ: from, with, after, from, to,
However, these are only those most commonly used.
in the Dativ is the question: whom
at the battery: wen
I’ll give my friend a book.
ANNEX Dativ: Wem do I give a book? – My Friend.
ANNEX Battery: What will I give to my friend? – A Book.
I’ll invite my friend to my birthday.
ANNEX Dativ: To what will I invite my friend? – To my Birthday.
ANNEX Battery: Wen do I invite? – My Friend.
Talk a lot to people who can do great German. Locals. Then you get a feeling for it. Read a lot. Good things on TV. Sports club. Music club. …