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.

✅ Γράφω ένα γράμμα στη γιαγιά μου.

ghráfo éna ghráma sti yayá mu

I'm writing a letter to my grandmother.

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.

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 γράφετε στα ελληνικά.

Incorrect — 'is written' is passive third-singular: γράφεται.

✅ Το γράμμα γράφεται στα ελληνικά.

to ghráma ghráfete sta eliniká

The letter is written in Greek.

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, 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.

(Noun endings use these letters for their own reasons — feminine nouns often end in -η, as in η νίκη — but the verb rule above is watertight.)

4. The movable final -ν (το βιβλίο, not *τον βιβλίο)

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 drop rule. The feminine την/στην, the numeral έναν, and the negatives δεν/μην keep their final -ν before a vowel or before one of the "hard-onset" consonants κ, π, τ, ξ, ψ and the clusters μπ, ντ, γκ, τσ, τζ — and drop it before the other consonants (β, γ, δ, ζ, θ, λ, μ, ν, ρ, σ, φ, χ). So it is την Άννα (before a vowel, keep) but τη λέξη (before λ, drop).

❌ 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.

The negatives δεν/μην are very commonly kept even where the strict rule would drop them, and that is now widely accepted; the masculine τον is always kept (dropping it would make it look like neuter το). The full treatment is on The movable final -ν.

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

Every word of two or more syllables needs exactly one tonos on its stressed syllable. In fast typing, learners drop it — but an accent-less polysyllable is a spelling error, not a shortcut, and it occasionally changes the word (πότε "when?" vs ποτέ "never").

❌ 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.

💡

When you proofread, do a dedicated "accent pass": run your eye over every word of two-plus syllables and confirm it has one — and only one — tonos on the right vowel. Misplacing it (άνθρωπος is stressed on the first syllable; putting the accent elsewhere spells a nonexistent word) is as much an error as omitting it.

6. και vs κι (κι εγώ, not *και εγώ in speech)

κι is the elided form of και ("and"), used before a word beginning with a vowel; και is the full form used before a consonant. Using κι before a consonant is an outright error; using και before a vowel is not wrong but sounds stilted next to natural κι.

❌ Θα έρθει και ο Γιάννης και εγώ.

Stilted/incorrect — before the vowels, use κι: κι ο Γιάννης κι εγώ.

✅ Θα έρθει κι ο Γιάννης κι εγώ.

tha érthi ki o yánis ki eghó

Both Giannis and I will come.

✅ Πήρα ψωμί και τυρί.

píra psomí ke tirí

I got bread and cheese.

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"?	-εις for you, -ει for he/she/it
τον / το	Is the noun masculine or neuter?	τον = masc, το = neut
tonos	Two+ syllables?	Exactly one accent, on the stressed vowel
και / κι	Next word starts with a vowel?	κι before a vowel, και before a consonant

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.
Match τον/το to gender; apply the drop rule to feminine την and the negatives.
Give every polysyllable one tonos, and use κι before a vowel.

Now practice Greek

Reading grammar gets you part of the way. The exercises are where it sticks — free, no signup needed.

Start learning Greek→