Після уроку я ховаю зошит у рюкзак.

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Breakdown of Після уроку я ховаю зошит у рюкзак.

• у: in
• урок: the lesson
• після: after

Questions & Answers about Після уроку я ховаю зошит у рюкзак.

Why is it уроку and not урок?

Because після always takes the genitive case.

• урок = nominative singular
• уроку = genitive singular

So після уроку means after the lesson / after class.

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What case is зошит, and why doesn’t it change form?

Зошит is the direct object of the verb ховаю, so it is in the accusative case.

For masculine inanimate nouns in the singular, the accusative looks the same as the nominative:

• nominative: зошит
• accusative: зошит

So even though it is accusative here, the form does not visibly change.

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Why is it у рюкзак and not у рюкзаку?