Svako jutro pijem kafu.

Because Serbian usually drops subject pronouns when they are not needed.

The verb pijem already tells you the subject is I, because it is the 1st person singular form of piti (to drink).

So:

• pijem = I drink

You can add ja if you want emphasis:

• Ja pijem kafu. = I drink coffee.

But in a neutral sentence, ja is usually omitted.

Pijem is the present tense, 1st person singular form of the verb piti (to drink).

A few present-tense forms are:

• ja pijem = I drink
• ti piješ = you drink
• on/ona/ono pije = he/she/it drinks
• mi pijemo = we drink
• vi pijete = you drink
• oni/one/ona piju = they drink

So in this sentence, pijem means I drink.

Because kafu is in the accusative case, which is used for the direct object of the verb.

Here, coffee is the thing being drunk, so it is the direct object.

• kafa = nominative
• kafu = accusative

This is a very common pattern for feminine nouns ending in -a:

• voda → vodu
• knjiga → knjigu
• kafa → kafu

So:

• Pijem kafu. = I drink coffee.

Because jutro is a neuter noun, and svako has to agree with it in gender, number, and case.

The word svaki / svaka / svako means every:

• svaki for masculine nouns
• svaka for feminine nouns
• svako for neuter nouns

Since jutro (morning) is neuter, you use:

• svako jutro = every morning

Compare:

• svaki dan = every day
• svaka noć = every night
• svako jutro = every morning

In svako jutro, jutro is functioning in an adverbial time expression, and this is commonly treated as the accusative.

So svako jutro literally works like every morning as a time phrase.

With neuter singular nouns like jutro, the nominative and accusative forms are the same, so you see:

• jutro in nominative
• jutro in accusative

The form does not change, but the function does.

Because Serbian, like English, often uses the present tense for habitual actions.

So pijem kafu can mean:

• I am drinking coffee in the right context, or
• I drink coffee as a habit

The phrase svako jutro makes it clear that this is a habitual action:

• Svako jutro pijem kafu. = I drink coffee every morning.

Because pijem is imperfective, and imperfective verbs are normally used for:

• habits
• repeated actions
• ongoing actions
• general facts

Since every morning describes a repeated habit, pijem is the natural choice.

By contrast, popiti / popijem is perfective, and perfective verbs usually focus on a completed action.

So:

• Svako jutro pijem kafu. = Every morning I drink coffee.
  habitual, general

A perfective form would sound more like focusing on finishing the coffee in a particular event, not just the routine itself.

Yes. Serbian word order is flexible, because case endings help show grammatical roles.

The neutral version here is:

• Svako jutro pijem kafu.

But you can also say:

• Pijem kafu svako jutro.
• Kafu pijem svako jutro.

These all mean roughly the same thing, but the emphasis changes:

• Svako jutro... emphasizes the time
• Kafu... emphasizes what you drink
• Pijem kafu... is also natural and neutral in many contexts

So Serbian word order is not random, but it is more flexible than English.

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

So kafu can mean:

• coffee
• the coffee
• a coffee

The exact meaning depends on context.

In this sentence, English naturally uses just:

• I drink coffee every morning.

Serbian does not need any article to express that.

Yes. Svakog jutra is also a natural way to say every morning.

So both of these are possible:

• Svako jutro pijem kafu.
• Svakog jutra pijem kafu.

The first uses the common accusative time expression pattern.
The second uses genitive in a fixed time-expression pattern.

For a learner, svako jutro is probably the more straightforward version to recognize first, but both are standard and common.

A simple approximate pronunciation is:

• SVA-ko YOO-tro PEE-yem KA-foo

A few helpful notes:

• j is pronounced like English y
• lj, nj, ć, đ can be tricky in Serbian, but none of them appear here
• pijem is roughly PEE-yem
• kafu is KA-foo

A more careful breakdown:

• svako = SVA-ko
• jutro = YOO-tro
• pijem = PEE-yem
• kafu = KA-foo

In standard Serbian, kafa is the normal word, and kafu is its accusative form.

So:

• kafa = coffee
• pijem kafu = I drink coffee

You may also hear regional variants in the wider South Slavic area, such as kava, but for standard Serbian, kafa is the expected form.