Я пью тёплый чай.

Because пить is an irregular verb in the present tense.

Its present-tense forms are:

• я пью — I drink
• ты пьёшь — you drink
• он/она пьёт — he/she drinks
• мы пьём — we drink
• вы пьёте — you drink
• они пьют — they drink

So пью is simply the correct I form of пить.

A useful thing to notice is that the stem changes:

• infinitive: пить
• present: пь- plus the endings

That is why it does not look fully regular.

A rough pronunciation guide is:

• Я — ya
• пью — roughly pyu
• тёплый — roughly TYOP-liy
• чай — chai

A few details:

• ё is always stressed, so тёплый is stressed on the first syllable.
• пью has a soft п sound because of the ь.
• чай rhymes approximately with English eye, but starts with ch.

A rough full pronunciation: ya pyu TYOP-liy chai

The ь is the soft sign. It does not have its own sound, but it changes how the previous consonant is pronounced.

In пью, it makes п soft, giving something like pyu rather than a hard pu.

So:

• пью = soft p
  • yu
• not a separate extra syllable

This is very common in Russian and important for pronunciation.

Because adjectives in Russian must agree with the noun they describe in gender, number, and case.

The noun чай is:

• masculine
• singular

So the adjective must also be masculine singular:

• тёплый — masculine singular
• тёплая — feminine singular
• тёплое — neuter singular
• тёплые — plural

That is why тёплый чай is correct.

Yes, чай is the direct object here, so it is in the accusative case. But for many inanimate masculine nouns, the accusative singular looks exactly like the nominative singular.

So:

• nominative: чай
• accusative: чай

They look the same.

That is why the sentence is not Я пью чая here.

Because with inanimate masculine singular nouns, the adjective in the accusative also looks the same as in the nominative.

So:

• nominative: тёплый чай
• accusative: тёплый чай

No visible change appears here.

This is a pattern worth remembering:

• masculine singular inanimate accusative = nominative
• masculine singular animate accusative usually matches the genitive instead

Yes, often you can.

Russian frequently drops subject pronouns when the meaning is clear from the verb form. Since пью already means I drink / I am drinking, Я is not always necessary.

So both can work:

• Я пью тёплый чай. — neutral, explicit
• Пью тёплый чай. — natural when the subject is already obvious

Including Я can add clarity or emphasis.

It can mean either, depending on context.

Russian present tense often covers both:

• I drink warm tea
• I am drinking warm tea

The verb пью is imperfective, so it can describe:

• a general habit
• something happening right now

Context tells you which meaning is intended.

Russian does not have articles like English a/an and the.

So чай can mean:

• tea
• a tea
• the tea

The exact meaning depends on context.

That is completely normal in Russian.

Both can describe temperature, but they are not the same.

• тёплый = warm
• горячий = hot

So:

• тёплый чай = warm tea
• горячий чай = hot tea

If the meaning shown to the learner is warm tea, then тёплый is the right adjective.

Russian word order is more flexible than English, although not completely free.

The neutral, straightforward order is:

• Я пью тёплый чай.

But other orders are possible for emphasis, for example:

• Тёплый чай я пью. — Warm tea is what I’m drinking.
• Чай я пью тёплый. — The tea I drink is warm / I drink the tea warm.

These alternatives sound more marked and depend on context. For a basic sentence, Я пью тёплый чай is the best default.

The correct spelling is тёплый with ё.

In many Russian texts, especially less formal ones, ё is often written as е, so you may see теплый. But the pronunciation and meaning are still тёплый.

Important point:

• ё is always stressed
• it is pronounced differently from е

So learners should know that тёплый is pronounced with ё, even if some texts write е instead.

Я is in the nominative case, because it is the subject of the sentence.

So in this sentence:

• Я — subject, nominative
• пью — verb
• тёплый чай — direct object, accusative

Even though чай and тёплый look unchanged, their role is still that of the accusative object.