Common Spelling Errors | Greek Grammar

Greek spelling is mostly regular once you know the rules — but a handful of endings sound identical while being spelled differently, and that is where nearly every recurring error lives. Because Greek has three ways to write the /i/ sound and two ways to write /o/, the ear cannot tell you which letter to use; only the grammar can. This page is a checklist you can run over your own writing. Each item is a wrong→right pair plus the rule that decides it. Learn to ask the grammatical question, and the spelling falls out automatically.

1. Verb ending: -ω, never -ο (θέλω, not ×θέλο)

The first-person singular of an active present-tense verb ("I _") ends in the letter -ω (omega), even though it just sounds like /o/. This is a grammatical ending, and it is never spelled with -ο (omicron). This is probably the most frequent single error learners make.

❌ Θέλο νερό, παρακαλώ.

Incorrect — the 'I' form ends in -ω: θέλω.

✅ Θέλω νερό, παρακαλώ.

thélo neró, parakaló

I want water, please.

✅ Δουλεύω από το σπίτι τρεις μέρες τη βδομάδα.

dhulévo apó to spíti tris méres ti vdhomádha

I work from home three days a week.

The rule extends to the future and subjunctive stem too: θα γράψω, να πάω — all -ω. The full family of verb-ending spellings has its own page, Verb-ending spellings. Careful, though: the ο/ω choice runs the opposite way in nouns and adjectives, where -ος and -ο are omicron and only the genitive plural -ων takes omega (ο δρόμος, το βιβλίο, but των βιβλίων). That side of the problem is on Noun and adjective endings: ο/ω, η/ι.

2. Passive/deponent -ται vs active -τε (έρχεται, not ×έρχετε)

Both endings are pronounced /te/, but they belong to completely different forms:

-ται = third-person singular of a mediopassive or deponent verb ("he/she/it ___s"): έρχεται ("comes"), φαίνεται ("seems"), γίνεται ("happens").
-τε = second-person plural of an active verb ("you all _"): γράφετε ("you write"), θέλετε ("you want").

Writing ×έρχετε for έρχεται is one of the top errors of natives and learners alike. Ask: who is the subject — a single "he/she/it" (→ -ται) or a plural "you" (→ -τε)?

❌ Ο Νίκος έρχετε αύριο το πρωί.

Incorrect — 'he comes' is third-person singular: έρχεται.

✅ Ο Νίκος έρχεται αύριο το πρωί.

o Níkos érchete ávrio to proí

Nikos is coming tomorrow morning.

✅ Το γράμμα γράφεται στα ελληνικά.

to ghráma ghráfete sta eliniká

The letter is written in Greek. (the passive — almost certainly what you meant)

✅ Το γράμμα γράφετε στα ελληνικά.

to ghráma ghráfete sta eliniká

You (pl.) write the letter in Greek. (a real sentence too — the object fronted for contrast; γράφετε is the active 'you all write')

This pair is the sharpest lesson on this page, and it explains why the error is so persistent: when you slip and write γράφετε for γράφεται, the slip lands on another real form. No spellchecker will underline it, because γράφετε exists — it is simply a different verb form with a different subject. Only the meaning you intended can tell you which one you wanted, and here the two are even pronounced the same (ghráfete either way). Ask the subject question every time.

Contrast a genuine active "you all" form, which really does end in -τε:

✅ Εσείς γράφετε πολύ ωραία.

esís ghráfete polí oréa

You (all) write very nicely.

3. ει / η / ι in verb endings (κάνεις, not ×κάνης)

Three spellings, one sound (/i/). In verb endings the choice is fixed by the person:

-εις = second-person singular ("you _"): κάνεις, θέλεις, γράφεις.
-ει = third-person singular ("he/she/it ___s"): κάνει, θέλει, γράφει.

The tempting wrong spellings are ×κάνης / ×κάνη (with η) or ×κάνις / ×κάνι (with ι). In the present active of an ordinary -ω verb, the answer is always the digraph ει.

❌ Τι κάνης απόψε;

Incorrect — the 'you' form ends in -εις: κάνεις.

✅ Τι κάνεις απόψε;

ti kánis apópse

What are you doing tonight?

❌ Ο Γιώργος δουλεύη πάρα πολύ.

Incorrect — the 'he' form ends in -ει: δουλεύει.

✅ Ο Γιώργος δουλεύει πάρα πολύ.

o Yórghos dhulévi pára polí

Giorgos works far too much.

The one class the ει rule does not touch: -άω verbs

Be precise about the scope, because there is a whole conjugation where no ει appears at all. The contracted verbs that can say -άω in the first person (μιλάω, αγαπάω, ρωτάω, ξυπνάω, πεινάω) go -άς in the second person and -άει (or short -ά) in the third:

μιλάω / μιλώ — μιλάς — μιλάει / μιλά
ξυπνάω — ξυπνάς — ξυπνάει

So the /is/ ending you are spelling has to be there before the ει rule applies. There is no ×μιλάεις and no ×μιλάης.

Μιλάς πολύ γρήγορα, δεν σε καταλαβαίνω.

milás polí ghríghora, dhen se katalavéno

You talk too fast, I can't follow you.

❌ Τι ώρα ξυπνάεις τα σαββατοκύριακα;

Incorrect — ξυπνάω is a contracted verb: the 'you' form is ξυπνάς, with no -ει- at all.

✅ Τι ώρα ξυπνάς τα σαββατοκύριακα;

ti óra ksipnás ta savatokíriaka

What time do you wake up at weekends?

…but a bare -ώ verb is not automatically one of them

This is where the shortcut "-άω / -ώ verbs take -άς" quietly breaks, and it breaks on one of the most frequent verbs in the language. Some contracted verbs have no -άω form at all — their first person is only ever -ώ — and those go straight back inside the ει rule:

Class	I _	you _	he/she/it ___s
Ordinary -ω verb	γράφω	γράφεις	γράφει
Contracted, has an -άω form	μιλάω / μιλώ	μιλάς	μιλάει / μιλά
Contracted, no -άω form	μπορώ	μπορείς	μπορεί

The third row is clearest with μπορώ: since ×μποράω does not exist, neither does ×μποράς. Learn other -ώ verbs individually: many genuinely waver — for example συμφωνώ / συμφωνάω, with συμφωνείς / συμφωνάς both real. Never infer the paradigm from the first-person ending alone.

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The test is one question: can this verb say -άω? μιλάω can, so the "you" form is μιλάς. μπορώ cannot — there is no ×μποράω — so it takes the ordinary μπορείς. Never go from a first person in -ώ straight to an ending in -άς.

Μπορείς να μου κρατήσεις μια θέση;

borís na mu kratísis mia thési

Can you save me a seat?

❌ Δεν μποράς να το κάνεις μόνος σου.

Incorrect — μπορώ has no -άω form, so its 'you' ending is the ordinary -είς: μπορείς.

✅ Δεν μπορείς να το κάνεις μόνος σου.

dhen borís na to kánis mónos su

You can't do it on your own.

Nouns use these same letters for their own reasons — feminine nouns very often end in -η (η νίκη, η αγάπη), neuters in -ι (το παιδί, το σπίτι) — so the verb rule above tells you nothing about them. The whole /i/ problem, endings and stems alike, is mapped on Spelling the /i/ sound, and the noun-ending half specifically on Noun and adjective endings.

4. τον vs το, and the movable final -ν

Two different things get lumped together as "the -ν problem," and it helps to separate them.

(a) Gender, not sound. The masculine article/pronoun is τον; the neuter is το (no -ν, ever). These must match the noun's gender. Writing ×τον βιβλίο is wrong not because of the sound but because βιβλίο is neuter → it needs το.

❌ Δώσε μου τον βιβλίο.

Incorrect — βιβλίο is neuter, so it takes το, not τον.

✅ Δώσε μου το βιβλίο.

dhóse mu to vivlío

Give me the book.

(b) The live drop rule. Feminine την/στην and μη(ν) keep final -ν before a vowel or one of κ, π, τ, ξ, ψ and the clusters μπ, ντ, γκ, τσ, τζ, and drop it before other consonants. So it is την Άννα (before a vowel, keep) but τη λέξη (before λ, drop). The common negative δεν is now usually written with ν throughout; masculine τον/στον and έναν also retain ν in standard spelling.

❌ Είδα τη Άννα στην αγορά.

Incorrect — before the vowel Ά, the -ν stays: την Άννα.

✅ Είδα την Άννα στην αγορά.

ídha tin Ána stin aghorá

I saw Anna at the market.

✅ Δεν κατάλαβα τη λέξη.

dhen katálava ti léksi

I didn't understand the word.

Do not flatten all these words into a single alternation: μη(ν) is live, δεν usually retains ν, and masculine τον/στον and έναν keep it. The full treatment is on The movable final -ν.

5. The missing or misplaced tonos (ευχαριστώ, not ×ευχαριστω)

Most independent words of two or more syllables need a tonos on their stressed syllable. Omitting it is normally a spelling error and can confuse words (πότε "when?" vs ποτέ "ever/never"). The "exactly one" shortcut has an important exception: a proparoxytone host acquires a second written accent before an enclitic, as in ο άνθρωπός μου.

❌ Σ' ευχαριστω πολυ για ολα.

Incorrect — three polysyllables are missing their tonos.

✅ Σ' ευχαριστώ πολύ για όλα.

s efcharistó polí ya óla

Thank you very much for everything.

💡

On an "accent pass," check each independent polysyllable's tonos, then whether a following enclitic requires a secondary one (άνθρωπος → ο άνθρωπός μου). A misplaced tonos can write a different word.

6. και vs κι in neutral Standard Greek

κι is the reduced form of και ("and"), favored especially before a word beginning with a vowel. In neutral Standard Greek, και is the normal choice before a consonant. Regional speech and poetic or stylized language can also license κι before a consonant, so that sequence is not a universal spelling error; it is a marked variety or register choice.

✅ Πήρα ψωμί και τυρί.

píra psomí ke tirí

I got bread and cheese.

Πήρα ψωμί κι τυρί.

píra psomí ki tirí

I got bread and cheese. (regional or poetic; marked in neutral Standard Greek)

The reverse direction is not an error, and this is where learners are often over-corrected. και before a vowel is perfectly good Greek — it is simply the fuller, more deliberate variant. Compare the two, and note that neither is wrong:

Ήρθαν κι η Μαρία κι ο Νίκος.

írthan ki i María ki o Níkos

Maria and Nikos both came. (informal — the elided form is what you hear in ordinary speech)

Ήρθαν και η Μαρία και ο Νίκος.

írthan ke i María ke o Níkos

Both Maria and Nikos came. (neutral to formal — fuller, more emphatic, and the usual choice in writing)

In the correlative frame και … και … ("both … and …"), the full form is if anything the norm in careful writing, because the repetition of και is what carries the "both" meaning and eliding it weakens the pattern. For neutral Standard Greek, choose και before a consonant, but do not go hunting through your writing to replace every και before a vowel.

💡

The asymmetry is the whole point. In neutral Standard Greek, prefer και before a consonant, while και versus κι before a vowel is largely a style choice, leaning informal-spoken (κι) versus neutral-written (και). A consonant-initial κι may be regionally or poetically authentic even though it is not the form to use in a neutral-standard exercise.

Your proofreading checklist

Run these six questions over anything you write:

Check	Ask yourself	Fix
-ω / -ο	Is this the "I" form of a verb?	End it in -ω (θέλω)
-ται / -τε	Is the subject "he/she/it" or "you all"?	-ται for he/she/it, -τε for you-plural
-εις / -ει	Is it "you" or "he/she/it"? And can the verb say -άω?	-εις for you, -ει for he/she/it. Only a verb with an -άω form takes -άς / -άει (μιλάω → μιλάς); a bare -ώ verb with no -άω form stays in the ει camp (μπορώ → μπορείς)
τον / το	Is the noun masculine or neuter?	τον = masc, το = neut
tonos	Is this an independent polysyllable, or a host followed by an enclitic?	Write its normal tonos; add the secondary accent where the enclitic rule requires it
και / κι	Am I writing neutral Standard Greek?	Prefer και before a consonant; κι is optional (and natural) before a vowel. Regional/poetic κι has wider distribution

Common Mistakes

The whole page is a mistakes catalogue, so here are the three highest-frequency offenders gathered in one place — the ones to check first, every time.

1. ×θέλο for θέλω. The "I" verb ending is -ω.

❌ Δεν θέλο να πάο.

Incorrect — both verbs need -ω: θέλω, πάω.

✅ Δεν θέλω να πάω.

dhen thélo na páo

I don't want to go.

2. ×έρχετε for έρχεται. A "he/she/it" mediopassive verb ends in -ται.

❌ Πότε έρχετε ο γιατρός;

Incorrect — 'he comes' is έρχεται.

✅ Πότε έρχεται ο γιατρός;

póte érchete o yatrós

When is the doctor coming?

3. ×τον for το before a neuter noun. Match the article to the noun's gender.

❌ Άνοιξε τον παράθυρο.

Incorrect — παράθυρο is neuter, so το παράθυρο.

✅ Άνοιξε το παράθυρο.

ánikse to paráthiro

Open the window.

Key Takeaways

The sound never tells you the spelling — the grammar does. Ask the person/number/gender question and the letter follows.
-ω for "I", -ται for "he/she/it" (passive), -εις/-ει for "you/he" (active): fix these three and most errors disappear — remembering that -άω verbs sit outside the ει rule (μιλάς, μιλάει), while a -ώ verb with no -άω form sits right back inside it (μπορώ → μπορείς). Some verbs genuinely waver, including συμφωνώ/συμφωνάω.
Match τον/το to gender; apply the live drop rule to feminine την and μη(ν), while δεν, masculine τον/στον and έναν normally keep ν.
Give independent polysyllables their required tonos, and remember the secondary accent before an enclitic (ο άνθρωπός μου). In neutral Standard Greek, prefer και before a consonant; κι before a vowel is optional, not obligatory, while regional or poetic κι may have wider distribution.

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