Modal Verbs (μπορώ, θέλω, πρέπει) in Greek

In Brief

Greek expresses can, want, and must with μπορώ, θέλω, and πρέπει, followed by να + a verb with its own personal form: Θέλω να φύγω (“I want to leave”). Unlike English, Greek does not put a bare infinitive after these verbs. Μπορώ and θέλω change with the subject, while πρέπει remains the same: πρέπει να φύγω / φύγεις / φύγουμε.

Overview

The verbs μπορώ (“can, be able”), θέλω (“want”), and πρέπει (“must, have to”) let you talk about ability, wishes, plans, and obligations. They are among the most useful verbs at A1: with only these three words and a small store of everyday verbs, you can ask for help, explain what you need, and say what is or is not possible.

The central pattern is modal + να + verb. Here, modal means a verb that adds an idea such as ability, willingness, or necessity to another action. The word να introduces a dependent verb form traditionally called the subjunctive (a form used after words such as να, rather than as a plain statement). You do not need to master the whole Greek subjunctive system yet. At first, learn useful combinations as chunks: μπορώ να έρθω, θέλω να φάω, πρέπει να φύγουμε.

This structure differs sharply from English. English says “I can go” and “I want to go,” but Modern Greek has no productive infinitive equivalent to English “to go.” The verb after να shows its own subject through its ending. That is why Θέλω να φύγεις means “I want you to leave,” while Θέλω να φύγω means “I want to leave.”

How It Works

The basic sentence pattern

Meaning	Pattern	Greek example	English
ability or possibility	form of μπορώ + να + verb	Μπορούμε να μπούμε.	We can come in.
wish or intention	form of θέλω + να + verb	Θέλω να ξεκουραστώ.	I want to rest.
necessity or obligation	πρέπει + να + verb	Πρέπει να περιμένεις.	You must wait.

The subject of the second verb may be the same as the subject of the modal, but it does not have to be:

• Θέλω να φύγω. — I want to leave. Both verbs refer to “I.”
• Θέλω να φύγεις. — I want you to leave. The ending of φύγεις points to “you.”
• Πρέπει να φύγουμε. — We must leave. The unchanged πρέπει does not identify the person; φύγουμε does.

Greek often leaves out subject pronouns because verb endings identify the person. Use εγώ, εσύ, and the other pronouns mainly for emphasis or contrast.

Present forms of μπορώ

Μπορώ belongs to a common group of verbs stressed on -ώ. It can express an acquired ability, practical possibility, or permission depending on context.

Person	Greek	English
εγώ	μπορώ	I can
εσύ	μπορείς	you can (singular, informal)
αυτός / αυτή / αυτό	μπορεί	he / she / it can
εμείς	μπορούμε	we can
εσείς	μπορείτε	you can (plural or formal)
αυτοί / αυτές / αυτά	μπορούν(ε)	they can

The final -ε in μπορούνε is common in speech; μπορούν is the usual compact form and works in all registers.

Present forms of θέλω

Θέλω means “want” and can also express willingness: Θέλεις να βοηθήσεις; may mean “Do you want to help?” or, in a suitable context, “Will you help?”

Person	Greek	English
εγώ	θέλω	I want
εσύ	θέλεις	you want (singular, informal)
αυτός / αυτή / αυτό	θέλει	he / she / it wants
εμείς	θέλουμε	we want
εσείς	θέλετε	you want (plural or formal)
αυτοί / αυτές / αυτά	θέλουν(ε)	they want

Again, both θέλουν and the conversational θέλουνε occur. Use θέλουν as a safe default.

The impersonal πρέπει

Πρέπει is impersonal: it does not conjugate to agree with a person. The verb after να shows who has the obligation.

Greek	English
πρέπει να φύγω	I must leave
πρέπει να φύγεις	you must leave
πρέπει να φύγει	he/she must leave
πρέπει να φύγουμε	we must leave
πρέπει να φύγετε	you must leave
πρέπει να φύγουν	they must leave

A name or noun can make the person explicit: Η Μαρία πρέπει να δουλέψει (“Maria has to work”). Do not try to create forms such as πρέπω or πρέπεις for this meaning.

Choosing the form after να

At beginner level, the safest method is to learn the να-form with each common verb. A major Greek distinction is between an action viewed as ongoing or repeated and an action viewed as one complete event:

View of the action	Greek	Natural meaning
ongoing or repeated	Θέλω να διαβάζω κάθε μέρα.	I want to study/read every day.
one complete event	Θέλω να διαβάσω αυτό το βιβλίο.	I want to read this book.
ongoing at the moment	Δεν μπορώ να μιλάω τώρα.	I cannot be talking now.
one bounded action	Δεν μπορώ να μιλήσω τώρα.	I cannot speak now.

Forms such as φάω, φύγω, έρθω, and διαβάσω are not ordinary present-tense forms standing alone. They occur after να and certain other particles. For everyday requests and plans involving one event, these complete-event forms are extremely common.

Negatives

Put δεν before μπορώ or θέλω when you negate the ability or desire itself:

• Δεν μπορώ να έρθω. — I cannot come.
• Δεν θέλω να περιμένω. — I do not want to wait.

To negate the action inside the να clause, use μη(ν), not δεν. Μην is normally used before a vowel or before κ, π, τ, ξ, ψ; μη occurs elsewhere, though actual speech shows some variation.

• Θέλω να μη φύγω ακόμα. — I want not to leave yet.
• Πρέπει να μην αργήσεις. — You must not be late.

This placement changes the meaning. Δεν θέλω να φύγω means “I do not want to leave”; Θέλω να μη φύγω means “I want not to leave.” The first is much more natural in most everyday situations.

Questions and polite requests

No extra verb like English “do” is needed. Intonation and a question mark make the sentence a question:

• Μπορείς να με βοηθήσεις; — Can you help me?
• Θέλετε να καθίσετε; — Would you like to sit down?
• Πρέπει να πληρώσουμε τώρα; — Do we have to pay now?

Μπορείτε να…; is useful with strangers because μπορείτε is both plural and formal singular. Adding παρακαλώ (“please”) makes the request more courteous: Μπορείτε να μιλήσετε πιο αργά, παρακαλώ;

Examples in Context

Greek	English	Note
Μπορώ να σε βοηθήσω.	I can help you.	Ability; one complete act of helping
Μπορείς να ανοίξεις το παράθυρο;	Can you open the window?	Informal request to one person
Δεν μπορείς να μείνεις εδώ.	You cannot stay here.	Negated ability or permission
Μπορούμε να πληρώσουμε με κάρτα;	Can we pay by card?	Asking about practical possibility
Θέλω να φάω.	I want to eat.	Same subject: “I” for both verbs
Θέλεις να πιούμε έναν καφέ;	Do you want us to have a coffee?	The plural πιούμε includes the speaker
Η Άννα θέλει να μάθει ελληνικά.	Anna wants to learn Greek.	A named subject with θέλει
Θέλω να έρθεις μαζί μου.	I want you to come with me.	Different subject in the να-clause
Δεν θέλουμε να αργήσουμε.	We do not want to be late.	The modal itself is negated
Πρέπει να φύγουμε.	We must leave.	πρέπει stays unchanged
Πρέπει να πάρεις το λεωφορείο.	You have to take the bus.	The ending of πάρεις marks singular “you”
Τα παιδιά πρέπει να κοιμηθούν.	The children must go to sleep.	The noun names who must act
Πρέπει να μην ξεχάσεις τα κλειδιά.	You must not forget the keys.	Negative inside the να-clause
Μπορείτε να μιλήσετε πιο αργά, παρακαλώ;	Can you speak more slowly, please?	Formal or plural request
Θέλω να διαβάζω λίγο κάθε βράδυ.	I want to read a little every evening.	Repeated activity

Common Mistakes

Using an English-style infinitive

• Wrong: Θέλω φύγω.
• Right: Θέλω να φύγω.
• Why: Greek requires να before the dependent verb. There is no bare infinitive after θέλω corresponding to English “to leave.”

Conjugating πρέπει

• Wrong: Πρέπεις να φύγεις.
• Right: Πρέπει να φύγεις.
• Why: Πρέπει is impersonal and never changes for “I,” “you,” “we,” or “they.” The following verb carries the person ending.

Matching both verbs automatically

• Wrong for “I want you to come”: Θέλω να έρχομαι.
• Right: Θέλω να έρθεις.
• Why: The two verbs can have different subjects. Choose the second verb ending for the person who performs that action.

Putting δεν after να

• Wrong: Πρέπει να δεν αργήσεις.
• Right: Πρέπει να μην αργήσεις.
• Why: A negative verb inside a να clause takes μη(ν). Use δεν before the main verb: Δεν θέλω να αργήσω.

Choosing the ongoing form for every one-time action

• Less natural for one arrival: Θέλω να έρχομαι αύριο.
• Right: Θέλω να έρθω αύριο.
• Why: να έρχομαι suggests repeated or ongoing coming; tomorrow’s single arrival is normally να έρθω.

Copying English “must not” and “do not have to” as if they were identical

• Wrong meaning: Πρέπει να μην έρθεις for “You do not have to come.”
• Right: Δεν χρειάζεται να έρθεις.
• Why: Πρέπει να μην έρθεις means “You must not come”—a prohibition. “You do not need to” is commonly δεν χρειάζεται να.

Usage Notes

Μπορώ covers both ability and situational possibility. Ξέρω να κολυμπάω (“I know how to swim”) can stress a learned skill, while Μπορώ να κολυμπήσω σήμερα (“I can swim today”) stresses present ability or circumstances. At beginner level, μπορώ να is usually understood without difficulty.

Θέλω is direct. It is perfectly normal when describing your wishes, but Θέλω έναν καφέ (“I want a coffee”) may sound blunt as a service request if tone and context are not friendly. Safer choices include Θα ήθελα έναν καφέ (“I would like a coffee”) or a question with μπορώ: Μπορώ να έχω έναν καφέ; You will learn θα ήθελα as a polite conditional expression later.

English “must” often has several Greek translations. Πρέπει να is the central neutral expression for necessity: rules, circumstances, advice, or a speaker’s judgment. In a question, Πρέπει να φύγω; can mean either “Must I leave?” or “Do I have to leave?” Context supplies the shade of meaning.

In ordinary speech, μπορεί να also has an important meaning beyond personal ability: “may, might.” In Μπορεί να βρέξει, μπορεί does not mean that the rain “is able” to do something; the whole expression means “It may rain.”

Beyond the Basics / Advanced Use

You do not need to master the following distinctions at A1, but recognizing them will prevent confusion later.

Ongoing versus complete-event forms

The difference after να is often called aspect—the speaker’s way of viewing an action, either from inside as ongoing/repeated or as a complete event. It is not simply a present-versus-future difference.

• Πρέπει να διαβάζεις περισσότερο. — You need to study more (as a habit).
• Πρέπει να διαβάσεις αυτό το κεφάλαιο. — You need to read this chapter (a complete task).
• Θέλω να πηγαίνω στην Ελλάδα κάθε χρόνο. — I want to go to Greece every year.
• Θέλω να πάω στην Ελλάδα φέτος. — I want to go to Greece this year.

Many complete-event forms are irregular, including πάω (“go”), έρθω (“come”), φάω (“eat”), and πω (“say”). Learn them through whole phrases rather than trying to predict every form from the present tense.

Possibility with μπορεί να

Third-person singular μπορεί να can introduce a possibility with any following subject:

• Μπορεί να έρθει αργότερα. — He/she may come later.
• Μπορεί να κάνουν λάθος. — They may be wrong.
• Μπορεί να είναι κλειστό. — It may be closed.

The plural subject of κάνουν does not change μπορεί. Compare Μπορούν να έρθουν (“They can come”), where plural μπορούν expresses their ability.

Past and conditional meanings

Later, you will meet μπορούσα (“I could / was able”), ήθελα (“I wanted”), and έπρεπε (“I had to / should have,” depending on context). The very common polite phrase Θα ήθελα… literally uses a conditional construction and means “I would like…”. These forms build on the same να + verb framework:

• Θα ήθελα να κλείσω ένα δωμάτιο. — I would like to book a room.
• Έπρεπε να φύγω νωρίτερα. — I had to leave earlier / I should have left earlier.

Necessity without naming a person

Greek can use πρέπει να in broad recommendations: Πρέπει να πίνουμε αρκετό νερό (“We should drink enough water”). The first-person plural can include people in general, much like English “we.” Greek also uses nouns after πρέπει in constructions such as Πρέπει προσοχή (“Care is needed”), but learners should prefer the clear and productive πρέπει να + verb pattern.

Practice Tips

1. Build a three-column drill. Choose five useful verbs and say each after μπορώ να, θέλω να, and πρέπει να: μπορώ να φύγω, θέλω να φύγω, πρέπει να φύγω. Then change the person: μπορείς να φύγεις, θέλεις να φύγεις, πρέπει να φύγεις.
2. Practice one event versus a habit. Pair phrases such as να διαβάσω σήμερα with να διαβάζω κάθε μέρα. The time expressions will help you hear why Greek chooses different verb forms.
3. Turn statements into real questions. Practice Μπορείτε να…;, Θέλεις να…;, and Πρέπει να…; with situations from travel, work, and home. Say the answers aloud too, including negatives such as Δεν μπορώ and Δεν χρειάζεται.

Related Concepts

• Prerequisite: Present Tense (Group B: -ώ/-άω) — provides the conjugation pattern used by μπορώ and helps you recognize its personal endings.