Ελέγχω το οδόμετρο και την εμπορική αξία πριν διαπραγματευτώ την τιμή.

Because the nouns have different gender, and the article has to agree with the noun in gender, number, and case.

• το οδόμετρο = neuter singular
• την εμπορική αξία = feminine singular
• την τιμή = feminine singular

All three are direct objects of the verbs, so they are in the accusative case.

A useful breakdown:

• οδόμετρο is neuter, so its accusative singular article is το
• αξία is feminine, so its accusative singular article is την
• τιμή is feminine, so its accusative singular article is την

So the articles are not chosen by meaning, but by the noun’s grammar.

Εμπορική is an adjective, and it must agree with αξία.

Since αξία is:

• feminine
• singular
• accusative

the adjective also becomes:

• feminine
• singular
• accusative

So:

• masculine: εμπορικός
• feminine: εμπορική
• neuter: εμπορικό

In this sentence, εμπορική αξία means commercial value or market value.

After πριν when it means before I do something, Greek normally uses the subjunctive form, not the ordinary present indicative.

So:

• πριν διαπραγματευτώ = before I negotiate
• literally, this is the form used for a specific action that will happen after the first action

The form διαπραγματευτώ is the aorist subjunctive, built with the perfective stem and used here after πριν.

This is very common in Greek:

• Πριν φύγω... = Before I leave...
• Πριν αγοράσεις... = Before you buy...
• Πριν αποφασίσουμε... = Before we decide...

So this is a standard grammar pattern.

That is a very common question. Greek subjunctive often uses να, but after certain words like πριν, να is often not expressed in standard usage.

So you get:

• πριν διαπραγματευτώ not
• πριν να διαπραγματευτώ in normal standard phrasing

In other words, πριν itself is enough to trigger the subjunctive here.

It is the 1st person singular aorist subjunctive of the verb διαπραγματεύομαι.

That sounds complicated, but here is the practical meaning:

• διαπραγματεύομαι = I negotiate / I am negotiating
• διαπραγματευτώ = for me to negotiate / I negotiate once / I should negotiate, depending on context

In this sentence, it means:

• before I negotiate the price

The aorist subjunctive here presents the negotiation as a single complete action, not as an ongoing process.

Greek often uses the present tense to state what someone generally does, especially in instructions, habits, routines, or typical behavior.

So:

• Ελέγχω το οδόμετρο και την εμπορική αξία πριν διαπραγματευτώ την τιμή.

can mean something like:

• I check the odometer and the market value before negotiating the price.
• or I check ... before I negotiate ...

It sounds like a regular step in a process, not necessarily something happening this exact second.

This is a very useful vocabulary distinction.

• αξία = value
• τιμή = price

So:

• εμπορική αξία = commercial value / market value
• την τιμή = the price

In context, the speaker is saying they check the car’s market value before negotiating the actual asking/selling price.

English learners sometimes mix these up because value and price can be close in meaning, but Greek clearly distinguishes them here.

Literally, οδόμετρο is odometer, the instrument that shows distance traveled.

In real usage, though, it can refer either to:

• the actual device/display, or
• the mileage reading

So in a sentence like this, it often effectively means:

• I check the mileage

That is very natural in car-buying context.

Because Greek usually does not need subject pronouns unless they are being emphasized.

The ending of the verb already shows the subject:

• Ελέγχω = I check
• διαπραγματευτώ = I negotiate / for me to negotiate

So εγώ is unnecessary unless you want emphasis, contrast, or clarity.

For example:

• Εγώ ελέγχω το οδόμετρο... = I check the odometer...
  This sounds more emphatic, like contrasting with someone else.

The given word order is natural and standard, but Greek word order is more flexible than English because case endings and articles help show each word’s role.

The sentence as written:

• Ελέγχω το οδόμετρο και την εμπορική αξία πριν διαπραγματευτώ την τιμή.

is neutral and clear.

You could move things around for emphasis, for example:

• Πριν διαπραγματευτώ την τιμή, ελέγχω το οδόμετρο και την εμπορική αξία.

That means essentially the same thing, but it emphasizes the before negotiating part first.

So the original order is not the only possible one, but it is a very natural default.

A simple pronunciation guide:

• οδόμετρο ≈ oh-THO-meh-troh
• διαπραγματευτώ ≈ thee-ah-prag-mah-tef-TO

A few helpful notes:

• δ in modern Greek sounds like th in this
• γγ or γκ can be tricky in Greek, but they do not appear here as a special issue
• ευ before a voiceless consonant often sounds like ef, so in διαπραγματευτώ, the ευτ part is pronounced roughly eft

The stressed syllable is marked by the accent:

• οδόμετρο
• διαπραγματευτώ

Both τη and την can represent the feminine accusative singular article in modern Greek.

• την is the full form
• τη is a shorter form often used before consonants in everyday speech and writing

So both of these are possible in many contexts:

• την τιμή
• τη τιμή

However, την is very common and completely standard. Many learners are first taught the fuller form because it is easy to recognize and works safely in formal writing.

Not necessarily. This is another common learner question.

Greek verbs ending in -ομαι are often called middle/passive forms, but many of them have an active meaning.

So:

• διαπραγματεύομαι means I negotiate

It does not mean I am negotiated.

This is a very important point: form and meaning do not always match one-to-one in Greek. Many everyday verbs look passive in form but are translated actively in English.

Yes, absolutely.

Even if the Greek says:

• το οδόμετρο = the odometer
• την εμπορική αξία = the commercial/market value

a natural English translation in context might be:

• I check the mileage and market value before negotiating the price.

That is often how a native English speaker would say it in a car-buying situation. So the Greek wording is straightforward, but the most natural English version may sound slightly less literal.