Учитель объясняет родительный падеж.

The teacher explains the genitive case.

Breakdown of Учитель объясняет родительный падеж.

• учитель: the teacher
• объяснять: to explain
• падеж: the case
• родительный: genitive

Questions & Answers about Учитель объясняет родительный падеж.

Why is учитель not changing its ending here?

Because учитель is the subject of the sentence, so it is in the nominative case.

• Dictionary form: учитель = teacher
• In this sentence, учитель is the person doing the action
• Russian subjects are normally in the nominative

So:

• учитель = the teacher
• объясняет = explains
• родительный падеж = the genitive case

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What form is объясняет, and why does it end in -ет?

Объясняет is the 3rd person singular present-tense form of the verb объяснять.

That ending -ет here means:

• he explains
• she explains
• it explains

Russian does not need a separate word for he or she if the subject is already given.

So:

• учитель объясняет = the teacher explains

The verb agrees with the singular subject учитель.

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Why is it родительный падеж and not some other form?

Because объяснять usually takes a direct object, and direct objects are often in the accusative case.

Here, the thing being explained is родительный падеж.

The dictionary form is:

• родительный падеж = genitive case

But in the sentence, it functions as the object of объясняет, so it appears in the accusative.

For this noun phrase:

• падеж is a masculine inanimate noun
• masculine inanimate nouns often have the same form in nominative and accusative singular

So падеж stays падеж.

Also:

• родительный agrees with падеж
• since the noun looks the same in the accusative, the adjective also looks the same here

So although the phrase is functioning as an accusative object, it looks identical to the nominative form.

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If родительный падеж means genitive case, why isn’t родительный itself in the genitive?

Because родительный here is not being used as a genitive form. It is an adjective meaning something like genitival or of the genitive type, and it agrees with падеж.

So:

• родительный падеж literally means genitive case
• родительный is an adjective modifying падеж
• both words are in the same grammatical form

This can feel confusing because the phrase is talking about the genitive case, but the words themselves are not in the genitive case.

It is similar to English phrases like:

• past tense
• direct object
• Russian language

The grammar term itself does not have to be in the grammar form it names.

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What is the dictionary form of родительный падеж?

The dictionary form is exactly родительный падеж.

That is because dictionaries normally list nouns and noun phrases in the nominative singular. Here:

• падеж = nominative singular
• родительный = nominative singular masculine, matching падеж

So the form you see in the sentence is also the dictionary form, even though in this sentence it is functioning as the object.

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Why doesn’t Russian use a word like the in this sentence?

Russian has no articles like a or the.

So учитель can mean:

• a teacher
• the teacher

And родительный падеж can mean:

• a genitive case
• the genitive case

In real usage, context tells you which meaning is intended. In this sentence, English would usually translate it as The teacher explains the genitive case, but Russian does not mark that with articles.

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Could the words be in a different order?

Yes. Russian word order is more flexible than English word order because case endings help show grammatical roles.

The neutral order here is:

• Учитель объясняет родительный падеж.

But you could also say, for example:

• Родительный падеж объясняет учитель.

That still means roughly the same thing, but the emphasis changes. This version puts focus on родительный падеж.

English relies heavily on word order for meaning, while Russian often uses word order more for emphasis, topic, and style.

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Is объясняет imperfective or perfective, and why does that matter?

Объясняет comes from the imperfective verb объяснять.

That matters because aspect in Russian shows how the action is viewed.

• объяснять = imperfective, focusing on the process, repeated action, or general action
• объяснить = perfective, focusing on completion

So:

• Учитель объясняет родительный падеж. = The teacher is explaining / explains the genitive case.
• Учитель объяснил родительный падеж. = The teacher explained the genitive case / finished explaining it.

In a classroom context, the imperfective is very natural because it describes the ongoing act of explanation.

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How do I know whether учитель means male teacher or just teacher in general?

Grammatically, учитель is a masculine noun. In many contexts, it refers to a male teacher.

However, in some general statements, masculine nouns can also be used more broadly depending on context. Still, if you specifically mean a female teacher, Russian usually uses:

• учительница = female teacher

So in this sentence, most learners would understand учитель as a male teacher unless context suggests otherwise.

Also notice the verb form объясняет does not show gender in the present tense, so the noun is what tells you the gender here.

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How is this sentence pronounced, and where is the stress?

The stress is:

• учи́тель объясня́ет роди́тельный паде́ж

A rough pronunciation guide:

• учи́тель ≈ oo-CHEE-tyel'
• объясня́ет ≈ ab-yis-NYAE-yet
• роди́тельный ≈ ra-DEE-tyel-nyy
• паде́ж ≈ pa-DYEZH

A few helpful points:

• Russian stress is unpredictable, so it must often be learned word by word.
• The letter я in объясняет affects the pronunciation of the consonant before it.
• The final ж in падеж sounds like the s in measure.

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Why is there no pronoun like он for he?

Because Russian often omits subject pronouns when the subject is already stated or clear from context.

Here, the subject is already present:

• учитель

So Russian does not need:

• Он объясняет родительный падеж.

That sentence is also possible, but then он would mean he, and the teacher would need to be understood from earlier context.

Russian avoids unnecessary pronouns more often than English does.

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Could this sentence also mean The teacher is explaining the genitive case rather than explains?

Yes. The Russian present tense often covers both:

• simple present: explains
• present progressive: is explaining

Russian does not normally have a separate verb form for is explaining.

So объясняет can mean either:

• explains
• is explaining

You choose the best English translation from context.

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Why does падеж stay the same, but in other sentences objects change form?

Because Russian accusative forms depend on gender, number, and especially whether a noun is animate or inanimate.

Падеж is:

• masculine
• singular
• inanimate

For masculine inanimate nouns, the accusative singular usually looks the same as the nominative singular.

So:

• nominative: падеж
• accusative: падеж

But compare with an animate masculine noun:

• nominative: студент
• accusative: студента

So the object form sometimes changes visibly and sometimes does not. In this sentence, it just happens to look the same.

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Can объяснять take a person as well as a thing?

Yes, but the pattern changes depending on what you want to say.

Common patterns include:

• объяснять что? = explain what?
• объяснять кому? = explain to whom?

For example:

• Учитель объясняет родительный падеж студентам.
• The teacher explains the genitive case to the students.

Here:

• родительный падеж is the thing being explained
• студентам is in the dative because they are the people receiving the explanation

So in your sentence, only the thing being explained is mentioned.

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Is this a complete natural sentence in Russian, or does it sound like a textbook example?

It is a perfectly grammatical and natural sentence, but it does also sound like the kind of sentence you might see in a classroom or textbook because the object is a grammar term.

In real life, Russian speakers could absolutely say it in a lesson:

• Учитель объясняет родительный падеж.

So it is both:

• natural Russian
• a very typical educational example sentence