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CaseSingularPlural
Nominativeименительный · кто? что?мост мосты the subject: who or what acts
Accusativeвинительный · кого? что?мост мосты the direct object of the verb
Genitiveродительный · кого? чего?моста мостов possession, absence, "of"-phrases
Dativeдательный · кому? чему?мосту мостам the receiver: to or for someone
Instrumentalтворительный · кем? чем?мостом мостами the tool or companion: with, by
Prepositionalпредложный · о ком? о чём?мосте мостах location and topics: in, at, about
Locativeгде? · the where-formна мосту plural uses the regular prepositionalfor physical location after в or на, this word uses this form instead of the prepositional

Мост is a masculine noun; the ending pattern above repeats across most masculine nouns, so every table you learn makes the next one cheaper. One extra form matters here: for location after в or на, Russian says на мосту, with the stress on the ending, instead of the regular prepositional.

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

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