Для каши мама купила пшено и молоко.

Because для requires the genitive case.

• Dictionary form: каша = porridge
• After для (for), it becomes каши

So:

• каша = porridge
• для каши = for porridge

This is a very common pattern in Russian: для + genitive.

Для usually means for.

In this sentence, для каши means for the porridge or more naturally in English, to make porridge.

So the idea is that Mom bought millet and milk for making porridge.

Because the subject is мама, which is feminine.

Russian verbs in the past tense agree with the subject in gender and number:

• купил = bought, masculine
• купила = bought, feminine
• купило = bought, neuter
• купили = bought, plural

Since мама is feminine, the correct form is купила.

They are in the accusative case, because they are the direct objects of купила (bought).

However, for many inanimate neuter nouns, the accusative looks exactly the same as the nominative.

So:

• пшено stays пшено
• молоко stays молоко

That is why you do not see a visible ending change here.

Пшено means millet or millet groats.

In the context of food, it refers to the grain used to make a kind of porridge. So in this sentence, пшено и молоко are the ingredients Mom bought.

Russian does not have articles like a, an, or the.

So a noun like молоко can mean:

• milk
• some milk
• the milk

The exact meaning depends on context.

That is normal in Russian, and learners have to get used to understanding definiteness from the situation rather than from an article.

No, Russian word order is fairly flexible.

Для каши мама купила пшено и молоко is perfectly natural, and it puts a little emphasis on what it was for: for porridge.

Other possible word orders include:

• Мама купила пшено и молоко для каши.
• Пшено и молоко мама купила для каши.

These versions all mean roughly the same thing, but the emphasis changes.

• Starting with для каши highlights the purpose first.
• Starting with мама sounds more neutral.
• Starting with пшено и молоко highlights what was bought.

Putting для каши first gives it emphasis or sets the context first.

Russian often places important or contextual information near the beginning. So this sentence can feel like:

• As for porridge, Mom bought millet and milk
• or For the porridge, Mom bought millet and milk

It is not unnatural at all; it just reflects a certain emphasis.

It can mean either, depending on context.

Without articles, Russian does not force the distinction the way English does. So для каши could mean:

• for porridge
• for the porridge
• to make porridge

In most contexts, the most natural English translation is simply for porridge or to make porridge.

Yes. И means and.

Here it connects the two things Mom bought:

• пшено
• молоко

So пшено и молоко = millet and milk.

Купила is perfective.

The verb pair is:

• покупать = imperfective, to buy / to be buying / to buy regularly
• купить → past feminine купила = perfective, bought

The perfective is used because the sentence describes a completed action: Mom went and bought the ingredients.

If you used the imperfective, it would suggest a different meaning, such as a repeated action, a process, or background information.

A simple pronunciation guide is:

Dlya káshi máma kupíla pshenó i malakó.

A few notes:

• для sounds roughly like dlya
• каши has stress on the first syllable: КА-ши
• купила has stress on -пи-: ку-ПИ-ла
• пшено has stress on the last syllable: пше-НО
• молоко has stress on the last syllable: мо-ло-КО

Also remember that unstressed о is pronounced more like a in standard Russian, which is why молоко sounds like malakó.