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CaseSingularPlural
Nominativeименительный · кто? что?реклама рекламы the subject: who or what acts
Accusativeвинительный · кого? что?рекламу рекламы the direct object of the verb
Genitiveродительный · кого? чего?рекламы реклам possession, absence, "of"-phrases
Dativeдательный · кому? чему?рекламе рекламам the receiver: to or for someone
Instrumentalтворительный · кем? чем?рекламой рекламами the tool or companion: with, by
Prepositionalпредложный · о ком? о чём?рекламе рекламах location and topics: in, at, about

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

Look up any other word in the Russian declension tool, see where реклама 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 реклама and every word like it with typed case endings, checked letter by letter.

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