Η αδερφή μου κουβαλάει πάντα ένα μπουκαλάκι νερό και ένα μικρό σημειωματάριο στην τσάντα της.

In Greek, the most natural order here is:

• η αδερφή μου = my sister

The possessive word μου usually comes after the noun:

• η αδερφή μου = my sister
• η τσάντα μου = my bag
• το βιβλίο μου = my book

Greek can sometimes move words around for emphasis, but η αδερφή μου is the normal, neutral way to say it.

Both exist.

• αδερφή is the very common everyday Modern Greek form.
• αδελφή is more formal or traditional.

So in normal speech, η αδερφή μου is completely natural and very common.

Yes. Both are correct.

• κουβαλάει
• κουβαλά

These are two common present-tense forms of the verb κουβαλάω = to carry.

So:

• Η αδερφή μου κουβαλάει...
• Η αδερφή μου κουβαλά...

both mean the same thing here.

κουβαλάει may sound a little fuller or slightly more careful, while κουβαλά is also very common in everyday speech.

Yes, here it means carries.

But κουβαλάω / κουβαλάει often suggests physically having something with you or transporting it, not just holding it for a second.

So in this sentence, it means something like:

• she always carries
• she always has with her

It sounds natural for items someone keeps in their bag.

Πάντα means always.

In Greek, adverbs like πάντα can move around more freely than in English. Here:

• κουβαλάει πάντα = always carries

This is a very natural placement.

You could also hear:

• πάντα κουβαλάει

That would still be correct, but it may sound slightly more emphatic on always.

So the sentence’s word order is normal and neutral.

Because Greek commonly uses this structure for containers and amounts:

• ένα μπουκαλάκι νερό = a small bottle of water
• ένα ποτήρι νερό = a glass of water
• ένα φλιτζάνι καφέ = a cup of coffee

The second noun often appears without an article in this kind of expression.

So μπουκαλάκι νερό is the normal way to say a little bottle of water.

Μπουκαλάκι is a diminutive form.

• μπουκάλι = bottle
• μπουκαλάκι = little bottle / small bottle

The ending -άκι often makes a noun smaller, cuter, or more informal.

Other examples:

• σπίτι = house, home
• σπιτάκι = little house

So ένα μπουκαλάκι νερό means a small bottle of water.

Because σημειωματάριο is a neuter noun.

Greek adjectives must agree with the noun in:

• gender
• number
• case

Here:

• σημειωματάριο = neuter singular
• so μικρός / μικρή / μικρό becomes μικρό

That is why we get:

• ένα μικρό σημειωματάριο = a small notebook

You can compare:

• ένας μικρός άντρας = a small man
• μια μικρή τσάντα = a small bag
• ένα μικρό σημειωματάριο = a small notebook

Because the sentence is talking about two separate items:

1. ένα μπουκαλάκι νερό
2. ένα μικρό σημειωματάριο

Repeating ένα makes the structure clear and natural:

• a small bottle of water and a small notebook

Greek often repeats the article or indefinite article in coordinated phrases like this, just as English does.

Yes, here σημειωματάριο means notebook or notepad, especially a small one used for notes.

It comes from the idea of notes:

• σημείωμα = note
• σημειωματάριο = notebook / notepad

So it is a practical object for writing things down.

Στην is a contraction of:

• σε + την = στην

Here:

• σε = in / into / at / to
• την τσάντα = the bag

So:

• στην τσάντα = in the bag

In this sentence, the meaning is in her bag.

This contraction is very common:

• στο = σε + το
• στη or στην = σε + τη(ν)
• στους, στις, etc.

Greek usually puts the weak possessive form after the noun:

• η τσάντα της = her bag
• η τσάντα μου = my bag
• η τσάντα σου = your bag

So:

• στην τσάντα της literally = in the bag of her
• natural English = in her bag

This is the normal Greek way to express possession in everyday language.

Because της can serve different grammatical functions depending on context.

It can mean:

• her
• to her
• of her / of the feminine noun

In this sentence, της is possessive:

• η τσάντα της = her bag

Greek often uses the same form for several related jobs, so you understand it from the sentence structure.

Yes, the objects of κουβαλάει are in the accusative:

• ένα μπουκαλάκι νερό
• ένα μικρό σημειωματάριο

After many verbs, the direct object appears in the accusative.

However, for many neuter singular nouns, the nominative and accusative look the same, so you do not see a change in form here.

For example:

• το σημειωματάριο can be nominative or accusative
• το μπουκαλάκι can be nominative or accusative

So the case is there grammatically, even if the form does not visibly change.

Because in container/quantity expressions, Greek often leaves the second noun without an article:

• ένα μπουκαλάκι νερό
• ένα ποτήρι γάλα
• ένα κομμάτι ψωμί

This works like English:

• a bottle of water
• not usually a bottle of the water

So νερό without an article is exactly what you would expect here.

Yes.

The combination of:

• present tense κουβαλάει
• adverb πάντα

shows a regular habit or typical behavior:

• She always carries...

So the sentence is not just about what she is carrying right now, but about what she usually has with her.