Breakdown of Ich wasche mir den Rücken.
ich
I
mir
me / to me (dative)
waschen
to wash
der Rücken
the back (body part)
Questions & Answers about Ich wasche mir den Rücken.
Why is it mir (dative) here instead of mich (accusative)?
Because you are washing a specific body part (den Rücken), which acts as the direct object (accusative). When the sentence already has an accusative object, the reflexive pronoun 'steps back' into the dative case (mir). If you were just saying 'I am washing myself' without mentioning the back, it would be accusative: Ich wasche mich.
Why doesn't the sentence use meinen Rücken to say 'my back'?
In English, we use possessive words like 'my' or 'your' for body parts. German usually avoids this. Instead, German uses a dative pronoun (like mir) to show whose body is affected, plus a simple 'the' (den) for the body part. So, you literally say 'I wash to myself the back'.
Why is it den Rücken and not der Rücken?
The back is the thing being washed, which makes it the direct object of the sentence. Since Rücken is a masculine noun (der Rücken), it must change to the accusative case (den Rücken).
How would I say 'He is washing his back' using this same pattern?
You would use the third-person reflexive pronoun sich, which is the same for both dative and accusative. The sentence becomes: Er wäscht sich den Rücken.
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