Anahtarı içeride unutunca arka kapıyı açamadım.

to forget

Breakdown of Anahtarı içeride unutunca arka kapıyı açamadım.

• arka: back
• kapı: the door
• anahtar: the key

Questions & Answers about Anahtarı içeride unutunca arka kapıyı açamadım.

What does anahtarı mean here, and why does it end in -ı?

Anahtar means key. In this sentence, anahtarı is the direct object of unutmak (to forget / leave behind).

The ending -ı is the accusative case marker, which is often used for a specific or definite direct object. So:

• anahtar = a key / key
• anahtarı = the key / a specific key as the object

So anahtarı içeride unutunca is literally something like when/since [I] forgot the key inside.

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Why is it içeride and not içeri?

This is a very common question.

• içeri usually means inside / inward / into the inside and suggests direction or movement.
• içeride means inside in the sense of location.

Here the key is located inside, not moving inward, so içeride is the natural choice.

Compare:

• Anahtarı içeri koydum. = I put the key inside.
  movement toward the inside
• Anahtar içeride. = The key is inside.
  location

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What does unutunca mean exactly?