چای گرم خوب است، اما آب خیلی سرد است.

In Persian, adjectives usually come after the noun they describe.

So:

• چایِ گرم = hot tea
• literally: tea hot

There is normally an ezafe sound between them, pronounced like a short -e:

• چایِ گرم
• pronounced roughly: châye garm

In normal writing, that ezafe is often not written, but native speakers still understand it.

There actually is a connector in pronunciation: the ezafe.

So this part is read as:

• چایِ گرم

But in everyday Persian spelling, the ezafe is often omitted in writing unless it needs to be shown for clarity.

That means:

• written: چای گرم
• pronounced: چایِ گرم

This is very common in Persian.

Because the sentence structure is:

• چایِ گرم = hot tea
• خوب است = is good

So the first adjective, گرم, is attached to چای and describes the noun.

Then خوب is the main description of the whole subject:

• Hot tea is good

A word-for-word breakdown is:

• چایِ گرم = hot tea
• خوب = good
• است = is

So literally:

• Hot tea good is

Persian often puts the verb, including to be, at the end of the clause.

So instead of English:

• Tea is good

Persian says:

• Tea good is
• چایِ گرم خوب است

This is a very common Persian sentence pattern.

Not always. In formal writing, است is normal and correct.

In everyday speech, people often shorten or drop it:

• خوب است → خوبه
• سرد است → سرده

So in conversation, you might hear:

• چای گرم خوبه، اما آب خیلی سرده.

This is the same meaning, just more natural in spoken Persian.

اما means but/however.

In this sentence:

• چای گرم خوب است، اما آب خیلی سرد است.
• Hot tea is good, but the water is very cold.

Yes, another very common word is ولی:

• چای گرم خوب است، ولی آب خیلی سرد است.

Both mean but.
Very roughly:

• اما can sound a little more formal or written
• ولی is very common in everyday speech

Because خیلی means very, and in Persian it comes before the adjective it modifies.

So:

• خیلی سرد = very cold
• literally: very cold

This is similar to English in this case.

Other examples:

• خیلی خوب = very good
• خیلی گرم = very warm/hot

Persian often leaves definiteness and indefiniteness unstated unless it needs to be made explicit.

So:

• چای گرم can mean hot tea
• آب can mean water or the water, depending on context

If Persian wants to make a more explicit, it can use یک:

• یک چای گرم = a hot tea / one hot tea

But very often, Persian simply does not use articles the way English does.

Here خوب is an adjective meaning good.

So:

• خوب است = is good

It is not the adverb well in this sentence.

Examples:

• چای خوب است = Tea is good
• او خوب صحبت می‌کند = He/She speaks well

So خوب can sometimes correspond to well, but here it clearly means good.

A careful pronunciation is roughly:

• châye garm khub ast, ammâ âb kheyli sard ast

A more natural spoken version is often closer to:

• châye garm khube, ammâ âb kheyli sarde

A few notes:

• چای = châi / chay
• گرم = garm
• خوب = khub
• خیلی = kheyli
• سرد = sard

The kh sound in خوب and خیلی is like the ch in German Bach or Scottish loch.

Some variation is possible in Persian, but this sentence is in a very normal and standard order.

Basic structure:

• subject + description + است

So:

• چایِ گرم خوب است
• آب خیلی سرد است

If you move words around, the sentence may sound marked, poetic, or less natural for a beginner. So for now, the best pattern to learn is:

• noun + adjective(s) + predicate + است

or more specifically here:

• چایِ گرم = noun phrase
• خوب است = predicate
• آب = subject
• خیلی سرد است = predicate

Because خیلی سرد is not directly modifying آب as part of one noun phrase in the same way گرم modifies چای.

Compare:

1. چایِ گرم = hot tea

   • adjective attached to noun
   • uses ezafe in pronunciation

2. آب خیلی سرد است = the water is very cold

   • خیلی سرد is the predicate of the sentence
   • no ezafe is needed there

So:

• چایِ گرم = one noun phrase
• آب ... سرد است = a full clause with is cold

That is why the structures are different.