Okay so I am reading through Harry Potter in German and I have come across this sentence:

Harry, Professor Quirrell ist einer deiner Lehrer in Hogwarts.

I do not understand why it is "einer deiner Lehrer" when "deiner" should be demonstrative and "einer" is indefinite pronoun.

Should it not be "einer dein Lehrer"?

2 Answers 2


"deiner Lehrer" is the genitive plural of "dein Lehrer". The construction "einer/eine/eines + genitive plural" corresponds to the English "one of ...", so it's "one of your teachers".


Think of that as if the following steps were applied:

1 - ein Lehrer von deinen Lehrern

Written like that it's a bit ambiguous, but bear with me. Read it as "one of your teachers", the more logical meaning, rather than "a teacher of your teachers".

Now let's replace the "ein Lehrer" with the corresponding pronoun:

2 - einer von deinen Lehrern

Finally, let's replace "von + dative" with the genitive:

3 - einer deiner Lehrer

Hope this makes it clear.

  • 3
    Nice answer.. little nitpick.. the first actually could be read as "one of your teacher's teacher". There is no work around though and it is fine didactically. I just wanted to mention it
    – Emanuel
    Commented Feb 11, 2014 at 16:32
  • You're right and I've added a note, thanks.
    – persson
    Commented Feb 11, 2014 at 18:17

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.