Η δασκάλα λέει να βάζουμε τελεία στο τέλος κάθε πρότασης.

Η δασκάλα means the female teacher.

• η = the for feminine singular nouns
• δασκάλα = teacher (feminine)

The masculine form would be:

• ο δάσκαλος = the male teacher

So the sentence specifically refers to a woman teacher.

λέει is the 3rd person singular form of λέω, which means to say / to tell.

So:

• η δασκάλα λέει... = the teacher says...

In this sentence, it can also feel like the teacher tells us... or the teacher says that..., depending on context.

να is a very common Greek word that introduces a verb in the subjunctive.

Here, λέει να βάζουμε... means something like:

• says that we should put...
• tells us to put...

A native English speaker often wants to translate να as to, but that does not always work exactly. In this sentence, it is better understood as introducing the action the teacher wants.

So:

• λέει να βάζουμε = says that we should put / tells us to put

Yes, by itself βάζουμε can mean we put.

But after να, it is functioning as a subjunctive form, not a plain indicative statement.

So:

• βάζουμε = we put
• να βάζουμε = that we should put / to be putting

In modern Greek, many subjunctive forms look the same as present-tense forms. The word να is what signals that it is not just a normal present statement.

Greek often uses first person plural in instructions or general rules, where English might also sometimes use we:

• We put a period at the end of every sentence.

It can sound like a shared classroom rule rather than a direct command to one person.

So να βάζουμε here gives the idea:

• that we should put
• that we are to put

It is less like ordering one specific person and more like stating a general practice.

τελεία means period in American English or full stop in British English.

It is the punctuation mark:

• .

So:

• βάζουμε τελεία = we put a period

Greek often leaves out the article when talking about something in a general or indefinite way.

So:

• βάζουμε τελεία = we put a period
• not necessarily we put the period

This is natural Greek. It is similar to English, where we also usually say put a period, not put the period, unless we mean a specific one.

στο τέλος means at the end.

στο is a contraction of:

• σε = in / at / to
• το = the (neuter singular)

So:

• σε το τέλος → στο τέλος

This kind of contraction is very common in Greek:

• στο = σε + το
• στη = σε + τη(ν)
• στον = σε + τον

Because after τέλος (end), Greek uses the genitive to mean of something.

So:

• το τέλος της πρότασης = the end of the sentence
• το τέλος κάθε πρότασης = the end of every sentence

Here:

• πρότασης is the genitive singular of πρόταση (sentence)

This is one of the most important things to notice in the sentence.

κάθε means each / every.

It is one of those words that usually stays the same in form:

• κάθε μέρα = every day
• κάθε παιδί = every child
• κάθε πρόταση = every sentence

In this sentence, because it goes with πρότασης in the genitive, the phrase becomes:

• κάθε πρότασης = of every sentence

So κάθε itself stays the same, while the noun changes case as needed.

The dictionary form is πρόταση.

That means sentence.

Here are the relevant forms:

• η πρόταση = the sentence
• της πρότασης = of the sentence

So in the sentence:

• κάθε πρότασης = of every sentence

Yes, πρόταση can mean more than one thing depending on context.

Common meanings include:

• sentence in grammar
• proposal / suggestion

In this sentence, because of τελεία and στο τέλος, it clearly means sentence.

A useful way to understand it is:

• λέω + να + verb

This pattern can express what someone says should happen.

So:

• Η δασκάλα λέει να βάζουμε... = The teacher says that we should put... = The teacher tells us to put...

It is not a word-for-word match to one fixed English structure, but that is the main idea.

Not very naturally in English.

A more natural English translation would be:

• The teacher says to put a period at the end of every sentence.
• The teacher says that we should put a period at the end of every sentence.
• The teacher tells us to put a period at the end of every sentence.

The last two often sound best, because they capture the classroom-instruction meaning more clearly.

The word order is natural, but Greek is generally more flexible than English.

This sentence goes:

• Η δασκάλα = subject
• λέει = verb
• να βάζουμε τελεία = subordinate clause
• στο τέλος κάθε πρότασης = place/location phrase

A different order may be possible for emphasis, but this version is the most straightforward and neutral.

The present tense here suggests a general instruction or something the teacher says regularly.

So it gives the feeling of:

• The teacher says...
• The teacher tells us...
• This is the teacher's instruction

If you changed it to a past form like είπε, it would mean:

• The teacher said...

So the present is appropriate for a general classroom rule.