Eniştem arabayı marketin önüne park etti.

Eniştem means my brother-in-law.

It breaks down like this:

• enişte = brother-in-law
• -m = my

So enişte + m = eniştem.

A small cultural note: enişte can sometimes be used a bit more broadly than English brother-in-law, depending on family context.

Because arabayı has the accusative ending, which often marks a specific, definite direct object.

Breakdown:

• araba = car
• araba-y-ı = the car

The -y- is a buffer letter added because the noun ends in a vowel and the suffix also begins with a vowel.

So here:

• arabayı park etti = he parked the car
• araba park etti would sound more like he parked a car or did car-parking, with a less specific object

English speakers often notice this because English uses the, but Turkish often shows definiteness through the accusative instead.

Marketin is the genitive form of market.

Breakdown:

• market = market / grocery store / supermarket
• market-in = of the market

It appears here because Turkish uses a possessive-style structure for expressions like in front of the market.

So:

• marketin önü literally means the market’s front
• more naturally: the front of the market

This is a very common Turkish pattern:

• evin önü = the front of the house
• okulun arkası = the back of the school
• masanın üstü = the top of the table

Önüne comes from ön meaning front.

Here is the full build-up:

• ön = front
• önü = its front / the front of it
• önüne = to its front / to the area in front of it

In this sentence, marketin önüne means to the front of the market, which in natural English becomes in front of the market.

More exactly:

• market-in = of the market
• ön-ü = its front
• -ne = to

The n is a buffer consonant that appears after this possessive form.

This is a very common question.

• önüne = to in front of
• önünde = at/in front of

So the difference is:

• -e / -a (dative) often shows direction or destination
• -de / -da (locative) shows location

With park etmek, Turkish often treats the place as the destination where the car is moved and left, so önüne is natural.

Compare:

• Arabayı marketin önüne park etti. = He parked the car in front of the market.
• Araba marketin önünde. = The car is in front of the market.

So önüne fits the action of moving the car there.

Because park etmek is a common Turkish compound verb made from:

• park = park
• etmek = to do / to make

Many borrowed words in Turkish combine with etmek to form verbs.

Examples:

• kontrol etmek = to check
• telefon etmek = to phone
• fark etmek = to notice

So:

• park etmek = to park
• park etti = parked

This is very normal Turkish.

Park etti is in the simple past tense.

Breakdown:

• etti = did / made in the past, from etmek
• in this compound, it gives park etti = parked

It is also third person singular, so it can mean:

• he parked
• she parked

Turkish verbs usually do not show gender, so the subject or context tells you whether it is he or she.

The sentence follows a very typical Turkish order:

• Eniştem = subject
• arabayı = object
• marketin önüne = place/destination
• park etti = verb

So the pattern is roughly:

Subject + Object + Place + Verb

Turkish often puts the verb at the end.

English speakers are used to:

• My brother-in-law parked the car in front of the market

But Turkish naturally prefers:

• My brother-in-law the car in front of the market parked

That said, Turkish word order is flexible, and changing it can change emphasis.

Turkish does not have articles that work exactly like English the and a/an.

Instead, Turkish shows these ideas in other ways:

• Definiteness is often shown by context or by the accusative
• Indefiniteness can be shown with bir or with a bare noun

In this sentence, arabayı is understood as the car because of the accusative ending -yı.

So even though there is no separate word meaning the, the grammar tells you the object is specific.

Yes:

• enişte-m = my brother-in-law
• araba-y-ı = the car
• market-in = of the market
• ön-ü-ne = to its front / in front of it
• park et-ti = parked

So structurally, the sentence is:

• Eniştem = subject
• arabayı = definite direct object
• marketin önüne = destination/location phrase
• park etti = verb in the past

This kind of suffix-by-suffix breakdown is very useful in Turkish, because a lot of meaning is packed into endings.