Polis o kişiyi suçladı.

Because Turkish marks a specific direct object with the accusative suffix -(y)I.

Here, o kişi means that person, so it is definite/specific. That is why kişi takes the accusative ending:

• kişi = person
• kişi + yi = kişiyi

The y is a buffer consonant added because kişi ends in a vowel.

Here, o means that.

In Turkish, o can be:

• a pronoun: he / she / it / that
• a demonstrative determiner before a noun: that

Since it comes before kişi, it means that person, not he/she.

Yes, if the context is already clear.

• o kişiyi = that person
• onu = him / her / it / that one

So Polis onu suçladı is also possible, but it is less explicit. O kişiyi spells out exactly who is being referred to.

Because the most neutral Turkish word order is Subject–Object–Verb.

So this sentence is:

• Polis = subject
• o kişiyi = object
• suçladı = verb

English usually prefers Subject–Verb–Object, but Turkish normally puts the verb last.

It can be broken down like this:

• suç = crime, fault, blame
• suçla- = to accuse, to blame
• -dı = past tense

So suçladı means accused / blamed.

There is no extra ending here for third-person singular; Turkish often leaves that unmarked in this tense.

Because Turkish suffixes change form according to vowel harmony and consonant harmony.

The past tense suffix is often shown as -DI.

In suçladı:

• the vowel becomes ı because the last vowel before the suffix is a
• the consonant is d here, not t

So:

• suçla + dı → suçladı

This is a very common Turkish pattern.

Because Turkish does not have articles like English the or a/an.

Instead, Turkish shows definiteness in other ways, such as:

• context
• word choice
• demonstratives like bu and o
• accusative marking on direct objects

Here, o kişiyi already clearly means that person, so no separate word for the is needed.

Grammatically, polis is usually singular in Turkish: police officer.

• polis = police officer
• polisler = police officers

English sometimes translates polis as the police, but if you want to make it clearly plural in Turkish, you would normally say polisler.

Because in a normal active Turkish sentence:

• the subject is usually unmarked
• a definite direct object usually takes the accusative ending

So in this sentence:

• polis = subject, no case ending
• o kişiyi = definite object, accusative ending -yi

That is a basic and very important Turkish pattern.

Yes. Turkish word order is flexible, but changing it changes the focus or emphasis.

For example:

• Polis o kişiyi suçladı. = neutral
• O kişiyi polis suçladı. = emphasizes polis
• Suçladı polis o kişiyi. = much more marked, used only in special contexts

For learners, the original order is the safest and most natural starting point.

Yes, but it sounds a bit neutral or slightly formal, like person or individual in English.

In more casual speech, Turkish might also use other words depending on the situation, such as:

• adam = man / guy
• kadın = woman
• biri = someone

So kişi is correct and natural, but it has a somewhat neutral, non-colloquial feel.

You would add the negative marker -ma/-me before the past tense:

• Polis o kişiyi suçlamadı.

That means The police officer did not accuse that person or The police did not accuse that person, depending on context.

Breakdown:

• suçla- = accuse
• -ma- = not
• -dı = past

So:

• suçlamadı = did not accuse