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CaseSingularPlural
Nominativeименительный · кто? что?фонтан фонтаны the subject: who or what acts
Accusativeвинительный · кого? что?фонтан фонтаны the direct object of the verb
Genitiveродительный · кого? чего?фонтана фонтанов possession, absence, "of"-phrases
Dativeдательный · кому? чему?фонтану фонтанам the receiver: to or for someone
Instrumentalтворительный · кем? чем?фонтаном фонтанами the tool or companion: with, by
Prepositionalпредложный · о ком? о чём?фонтане фонтанах location and topics: in, at, about

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

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

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