kanozyo ha yubiwa wo katta.

It is read:

かのじょ は ゆびわ を かった。

In rōmaji:

kanojo wa yubiwa o katta

A few pronunciation notes:

• 彼女 = かのじょ
• 指輪 = ゆびわ
• を is pronounced o
• 買った = かった

In this sentence, は is the topic particle, and when は is used as a particle, it is pronounced wa, not ha.

So:

• 彼女は is read かのじょ は → pronounced kanojo wa

This is one of the first big spelling/pronunciation exceptions learners meet in Japanese.

を is the object particle, and in modern Japanese it is usually pronounced simply o.

So:

• 指輪を is read ゆびわを
• but pronounced yubiwa o

You may sometimes see it written in rōmaji as wo, because that matches the kana, but the actual pronunciation is usually just o.

は marks the topic of the sentence.

In:

彼女は指輪を買った。

彼女は means something like:

• as for her
• speaking of her

It tells you who the sentence is about.
So the sentence is presenting information about her.

This is a little different from English subject marking. Japanese often uses は to frame the topic, not just to label the grammatical subject in the same way English does.

を marks the direct object of the verb.

Here:

• 指輪 = ring
• 指輪を = the ring as the thing being bought

So を shows what was bought.

A simple way to think of it:

• X を 買う = to buy X

Because Japanese is usually a verb-final language.

A very common basic pattern is:

• Topic + object + verb

So:

• 彼女は = as for her
• 指輪を = ring
• 買った = bought

This is normal Japanese word order.
English usually puts the verb earlier, but Japanese usually saves it for the end.

買った is the plain past form of 買う (to buy).

So:

• dictionary form: 買う = buy / to buy
• past plain form: 買った = bought

This is the casual/plain style, not the polite style.

The polite version would be:

彼女は指輪を買いました。

This is a conjugation pattern for う-verbs.

買う is a u-verb, and its plain past form changes like this:

• 買う
• → 買った

This pattern also appears in other verbs ending in う / つ / る:

• 会う → 会った
• 待つ → 待った
• 取る → 取った

So 買った is not random; it follows a common past-tense pattern.

Not always.

彼女 can mean:

• she
• her
• sometimes girlfriend, depending on context

In a sentence like this, it usually means she or her, but context matters.

Japanese often relies heavily on context, so one word can have more than one natural translation in English.

Not exactly.

In English, people often use she very freely. In Japanese, pronouns like 彼 and 彼女 are used, but not always as often as English pronouns are.

In natural conversation, Japanese often prefers to:

• omit the pronoun entirely
• use the person’s name
• use a title or relationship term

So while 彼女は指輪を買った。 is perfectly understandable, in real conversation Japanese might often say just:

指輪を買った。

if it is already clear who bought it.

You are right: normal Japanese writing usually does not use spaces between words.

This sentence would normally be written as:

彼女は指輪を買った。

The spaces are often added in learning materials to help beginners see the parts more clearly:

• 彼女
• は
• 指輪
• を
• 買った

So the spaced version is for readability, not standard native-style writing.

Yes, but the nuance changes.

• 彼女は指輪を買った。 = As for her, she bought a ring.
• 彼女が指輪を買った。 = She is the one who bought the ring.

Very roughly:

• は introduces the topic
• が tends to identify or emphasize the subject more directly

So both are possible, but they do not feel exactly the same.

Yes, if the context makes it obvious.

For example, if everyone already knows you are talking about a ring, Japanese might simply say:

彼女は買った。

However, without context, that sounds incomplete in English because English usually wants the object stated more clearly. Japanese is much more comfortable leaving things unsaid when they are understood.

A simple breakdown is:

• 彼女 = she / her
• は = topic marker
• 指輪 = ring
• を = direct object marker
• 買った = bought

So the structure is:

Topic + object + verb

or more literally:

As for her, ring bought.

That literal breakdown sounds unnatural in English, but it shows how the Japanese sentence is built.