Μερικές φορές πίνω καφέ το πρωί και άλλες φορές μόνο νερό.

In Greek, the verb ending often already shows the subject, so the subject pronoun is usually omitted.

• πίνω = I drink
• The ending -ω tells you it is first person singular

So:

• πίνω καφέ = I drink coffee

You could say εγώ πίνω, but that usually adds emphasis, like I drink, not someone else.

Μερικές φορές literally means something like some times or certain times, and in natural English it means sometimes.

Breakdown:

• μερικές = some / a few
• φορές = times (plural of φορά)

This is a very common Greek expression for sometimes.

Because they describe φορές, and φορά is a feminine noun.

So:

• η φορά = the time / occasion
• οι φορές = the times / occasions

The adjectives must agree with the noun they describe:

• μερικές φορές = some times
• άλλες φορές = other times

This kind of agreement is very important in Greek.

Greek often avoids repeating a verb when it is clearly understood from the first part of the sentence.

So:

• Μερικές φορές πίνω καφέ το πρωί και άλλες φορές μόνο νερό.

means:

• Sometimes I drink coffee in the morning, and other times only water.

The second half is understood as:

• άλλες φορές πίνω μόνο νερό

The second πίνω is omitted because it is obvious.

Because καφέ here is the object of the verb πίνω.

The basic dictionary form is:

• ο καφές = coffee

But as a direct object in the singular, it becomes:

• πίνω καφέ = I drink coffee

This is the accusative form.

So:

• ο καφές = nominative
• τον καφέ / καφέ = accusative

This is very common with masculine nouns like καφές.

Greek often leaves out the article when talking about a substance or something in a general sense.

So:

• πίνω καφέ = I drink coffee
• πίνω νερό = I drink water

This is similar to English, where we also usually say drink coffee and drink water, not drink the coffee unless we mean specific coffee or water.

If you said:

• πίνω τον καφέ

that would usually mean I’m drinking the coffee — a specific coffee.

το πρωί means in the morning or the morning, depending on context.

Breakdown:

• το = the
• πρωί = morning

In Greek, expressions of time often use the article:

• το πρωί = in the morning
• το βράδυ = in the evening / at night
• το απόγευμα = in the afternoon

So even though English says in the morning, Greek commonly says literally the morning.

μόνο means only / just, and here it modifies νερό.

So:

• μόνο νερό = only water / just water

The position is natural because it clearly emphasizes what the speaker drinks in those cases.

Compare:

• πίνω μόνο νερό = I drink only water
• μόνο νερό πίνω = more emphasis on water
• πίνω νερό μόνο το πρωί = could mean I drink water only in the morning

So word order can affect emphasis.

They work together as a contrast:

• Μερικές φορές = sometimes / some times
• άλλες φορές = other times

So the sentence sets up two different situations:

• sometimes coffee in the morning
• other times only water

This pairing is very natural in Greek.

Yes. και is the normal word for and, and here it connects two contrasting parts of the sentence:

• Μερικές φορές ... και άλλες φορές ...
• Sometimes ... and other times ...

Even though there is a contrast, Greek can still use και very naturally here.

Greek word order is fairly flexible, but different orders change the emphasis.

The original sentence is very natural:

• Μερικές φορές πίνω καφέ το πρωί και άλλες φορές μόνο νερό.

You could also say:

• Το πρωί μερικές φορές πίνω καφέ και άλλες φορές μόνο νερό.

That puts more focus on the morning.

Or:

• Μερικές φορές το πρωί πίνω καφέ και άλλες φορές μόνο νερό.

Also possible, with slightly different rhythm.

So yes, the order can change, but the original version is smooth and idiomatic.

Yes, Greek can sometimes leave it out, but repeating it makes the structure clearer and more balanced.

With repetition:

• Μερικές φορές ... και άλλες φορές ...

This sounds complete and natural.

You may also hear shorter phrasing in speech, but for learners, the repeated φορές is very helpful because it clearly shows the pattern:

• some times ... other times ...

Good question. The meaning changes a little.

• πίνω καφέ = I drink coffee in a general sense
• πίνω έναν καφέ = I drink a coffee / I’m having a coffee

The version without an article or number is more general and fits habits well. Since this sentence is about what someone drinks on different mornings, πίνω καφέ is the natural choice.

A simple pronunciation guide:

• Μερικές φορές = meh-ree-KES fo-RES
• πίνω = PEE-no
• καφέ = ka-FE
• το πρωί = to pro-EE
• και = ke
• άλλες φορές = AL-les fo-RES
• μόνο νερό = MO-no neh-RO

A rough full reading:

meh-ree-KES fo-RES PEE-no ka-FE to pro-EE ke AL-les fo-RES MO-no neh-RO

The main stress falls on:

• μερικές
• φορές
• πίνω
• καφέ
• πρωί
• άλλες
• φορές
• μόνο
• νερό

It describes a habit or a repeated pattern.

Greek uses the present tense for both:

• actions happening now
• habitual actions

So here:

• πίνω = I drink / I usually drink

Because of Μερικές φορές and άλλες φορές, the sentence clearly refers to repeated behavior, not just one single moment.