kanozyo ha kazoku wo settokusita.

It is pronounced:

かのじょ は かぞく を せっとくした。

Romanized, that is:

kanojo wa kazoku o settoku shita

A few notes:

• は is written ha but pronounced wa when it is the topic particle.
• を is usually pronounced o.
• 説得 is read せっとく and has a doubled consonant sound in set-to-ku.

Because は is being used as a particle, not as part of a regular word.

In modern Japanese:

• は as a normal syllable = ha
• は as the topic marker = pronounced wa

So in 彼女は, you read it as:

• 彼女 = かのじょ
• は = wa

は marks the topic of the sentence.

So 彼女は means something like:

• As for her, ...
• She, ...

In English, we often just translate this naturally as she, but grammatically Japanese is doing something slightly different. It is introducing 彼女 as the topic the sentence is about.

を marks the direct object of the verb.

Here, the verb is 説得した (persuaded), and the thing being persuaded is 家族.

So:

• 彼女は = as for her / she
• 家族を = family as the object
• 説得した = persuaded

In other words, 家族 is the target of the action of persuading.

Good question. Different Japanese verbs take different particles.

説得する usually takes the person persuaded as a direct object, so it uses を:

• 人を説得する = to persuade someone

By contrast, some English verbs that involve another person may use a different pattern in Japanese. But with 説得する, を is the normal choice.

説得した is the past plain form of 説得する.

Breakdown:

• 説得 = persuasion / convincing
• する = to do
• 説得する = to persuade
• 説得した = persuaded / did persuade

This is a very common pattern in Japanese:

• noun-like word + する = verb

Examples:

• 勉強する = to study
• 電話する = to call
• 説得する = to persuade

Japanese has many verbs made with a verbal noun + する pattern. These are often called suru-verbs.

So even though 説得 can function like a noun by itself, adding する turns it into a verb:

• 説得 = persuasion
• 説得する = to persuade

This is extremely common and natural in Japanese.

Not always. 彼女 can mean:

• she
• girlfriend, depending on context

In this sentence, because of the structure and context, it is understood as she.

This is a useful reminder that Japanese words often depend heavily on context.

Japanese often leaves out information that is obvious from context.

So 家族 by itself can mean:

• family
• one’s family
• their family

In this sentence, English usually says her family, but Japanese does not need a word like her if the listener can naturally understand whose family it is.

If needed, Japanese could be more explicit, for example:

• 彼女は自分の家族を説得した。

But that is often unnecessary.

家族 usually means family as a group/unit.

Depending on context, it may refer to:

• the family collectively
• family members in general

Japanese often does not mark singular vs. plural as clearly as English does. So 家族 does not need an ending like -s.

The sentence simply tells us that she persuaded the family / her family.

Japanese does not have articles like a, an, or the.

So 家族 can mean:

• a family
• the family
• her family
• their family

The exact interpretation comes from context.

That is very normal in Japanese, and learners have to get used to relying more on context than on little words like English articles.

The neutral order here is very natural:

• 彼女は
• 家族を
• 説得した

So: topic + object + verb

Japanese verbs normally come at the end of the sentence. That part is very important.

The order of other elements can sometimes change for emphasis, but 説得した would usually stay at the end in a plain statement.

Yes, but it would change the nuance.

• 彼女は家族を説得した。
  = As for her, she persuaded her family.
• 彼女が家族を説得した。
  = She is the one who persuaded the family.

So:

• は introduces or contrasts the topic
• が highlights the subject more directly

Both can be grammatical, but they are not interchangeable in nuance.

It is plain past, not polite.

So this sentence is in a casual/plain style:

• 説得した = plain past

A polite version would be:

• 彼女は家族を説得しました。

Both mean the same basic thing, but しました is more polite and appropriate in formal conversation or writing.

Yes, very often.

Japanese frequently drops subjects and topics when they are understood. So if everyone already knows who is being talked about, you could simply say:

• 家族を説得した。

That could still mean She persuaded her family, depending on context.

This is one of the biggest differences from English: Japanese often omits information that English usually keeps explicit.