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CaseSingularPlural
Nominativeименительный · кто? что?дерево деревья the subject: who or what acts
Accusativeвинительный · кого? что?дерево деревья the direct object of the verb
Genitiveродительный · кого? чего?дерева деревьев possession, absence, "of"-phrases
Dativeдательный · кому? чему?дереву деревьям the receiver: to or for someone
Instrumentalтворительный · кем? чем?деревом деревьями the tool or companion: with, by
Prepositionalпредложный · о ком? о чём?дереве деревьях location and topics: in, at, about

Дерево is a neuter noun; the ending pattern above repeats across most neuter nouns, so every table you learn makes the next one cheaper.

Look up any other word in the Russian declension tool, see where дерево ranks in the most common Russian words, or start from Russian cases explained if the table above is new territory. More vocabulary lives in Russian words by topic and Russian phrases.

12 forms is a table. Using them is a skill.

Slova drills дерево and every word like it with typed case endings, checked letter by letter.

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