Όταν γράφω πολλή ώρα, το δάχτυλό μου και η πλάτη μου πονάνε ακόμα.

In Greek, όταν is usually followed by the subjunctive marker να in many contexts, but with a general repeated situation, learners also often meet όταν + present in everyday speech to mean when/whenever I write.

Here, Όταν γράφω πολλή ώρα means When/Whenever I write for a long time. It describes a repeated, general situation, not one specific future event.

If you said όταν θα γράφω, that would sound nonstandard in most modern usage. Greek normally does not use θα after όταν the way English uses will after when in some learner translations.

Πολλή ώρα means a long time or for a long time.

• πολλή = a lot / much / long, agreeing with ώρα
• ώρα literally = hour, but in this expression it means time in a general sense

So:

• γράφω πολλή ώρα = I write for a long time

Greek often does not need a separate word for for in this kind of time expression.

Because it has to agree with ώρα, which is a feminine singular noun.

Compare:

• πολύ νερό = a lot of water (neuter singular)
• πολλή ζέστη = a lot of heat (feminine singular)
• πολλή ώρα = a long time (feminine singular)
• πολλοί άνθρωποι = many people (masculine plural)

So πολλή is the feminine singular form of πολύς.

Greek very often uses the definite article with body parts, even when English would often just use a possessive.

So Greek prefers:

• το δάχτυλό μου = my finger
• η πλάτη μου = my back

This is completely normal Greek structure:

• article + noun + possessive pronoun

English learners sometimes expect the possessive alone to be enough, but in Greek the article is usually still there.

The basic dictionary form is το δάχτυλο = the finger.

When you add the weak possessive pronoun μου, Greek often shifts the stress:

• το δάχτυλο
• το δάχτυλό μου

This extra accent helps show the correct pronunciation. This stress shift is very common with some neuter nouns followed by possessives like:

• το πρόσωπό μου
• το σπίτι μου (no extra accent shift here)
• το δάχτυλό μου

So δάχτυλό μου is not a different word in meaning; it is the normal stressed form in this phrase.

Πλάτη is a feminine noun.

That is why it takes:

• the feminine article η
• the possessive μου after it

So:

• η πλάτη = the back
• η πλάτη μου = my back

Greek noun gender must be learned with each noun, because it affects articles, adjectives, and sometimes pronouns.

Because the subject is plural:

• το δάχτυλό μου
• και
• η πλάτη μου

Together they form a compound subject: my finger and my back, so the verb must be plural.

That is why Greek says:

• πονάνε = they hurt

Even though each noun is singular by itself, together they are plural.

Yes. Both mean they hurt.

For the verb πονάω / πονώ (to hurt, to be in pain), Greek has more than one common present-tense form in everyday use.

You may see:

• πονάω
• πονώ

and in the plural:

• πονάνε
• πονούν

In everyday spoken Greek, πονάνε is very common and natural.

Here ακόμα means still.

So:

• πονάνε ακόμα = still hurt

It shows that the pain continues.

Depending on context, ακόμα can also mean even or yet, but in this sentence still is the natural meaning.

Greek word order is more flexible than English word order. Putting ακόμα at the end is very natural here.

• το δάχτυλό μου και η πλάτη μου πονάνε ακόμα

This final position gives a natural sense of they still hurt.

You could also hear slightly different word orders depending on emphasis, but this one is perfectly normal.

The comma separates the time clause from the main clause:

• Όταν γράφω πολλή ώρα, = When I write for a long time,
• το δάχτυλό μου και η πλάτη μου πονάνε ακόμα. = my finger and my back still hurt.

This is similar to English punctuation when a subordinate clause comes first.

Yes. The Greek present tense often covers both ideas, and context decides the best English translation.

So γράφω can mean:

• I write
• I am writing

In this sentence, because it describes a general repeated situation, I write or I’ve been writing may fit depending on the translation style. The Greek form itself is just the present tense.

Mostly it is used for physical pain, but it can also be used emotionally in some contexts.

Examples of physical use:

• Με πονάει η μέση μου. = My lower back hurts.
• Τα πόδια μου πονάνε. = My legs hurt.

In your sentence, it clearly refers to physical pain in the finger and the back.

Because one plural verb is enough for both subjects together:

• το δάχτυλό μου και η πλάτη μου πονάνε

This is just like English:

• My finger and my back hurt not usually
• My finger hurts and my back hurts

Greek can repeat the verb for emphasis, but it is not necessary here.