Elon.io is an online learning platform
We have an entire course teaching Russian grammar and vocabulary.
Questions & Answers about У ребёнка маленький рот.
Why is the genitive form ребёнка instead of "ребёнока"?
The dictionary form is ребёнок (child). When adding the Genitive case ending -а after the preposition у, the -о- in the last syllable drops out. This is a "fleeting vowel," a common pattern in Russian nouns to make them easier to pronounce.
Why isn't the word есть used in this sentence?
While the standard "to have" structure is у + [owner] + есть + [object], Russian usually drops есть when describing physical features or attributes. Saying У ребёнка есть маленький рот would sound unnatural, as if you are confirming the mere existence of the mouth rather than describing its size.
Why does the adjective маленький end in -ий?
Adjectives must match the gender of the noun they describe. The word for mouth, рот, ends in a hard consonant and is masculine. Therefore, we use the masculine nominative ending for the adjective: маленький.
What is the literal translation of this grammatical structure?
Literally, it translates to "At the child [is] a small mouth." Russian doesn't use a verb like "to have." Instead, it uses the preposition у followed by the owner in the Genitive case (ребёнка), and the object being owned becomes the grammatical subject of the sentence in the Nominative case (маленький рот).