kanozyo no seikatu ha anteisite iru.

It is read:

かのじょ の せいかつ は あんていして いる

Word by word:

• 彼女 = かのじょ
• の
• 生活 = せいかつ
• は
• 安定している = あんていしている

In casual speech, している is often shortened to してる, so you may hear あんていしてる.

It can mean either in general, but in this sentence it most naturally means she / her.

Why?

• 彼女の生活 means her life or her living situation
• If it meant my girlfriend's life, the broader context would usually make that clear

So grammatically, 彼女 can mean both, but here the most neutral reading is her.

の links one noun to another. Here it shows possession or association.

So:

• 彼女 = she / her
• 生活 = life / living situation
• 彼女の生活 = her life

You can think of A の B as often meaning:

• B of A
• A's B

So 彼女の生活 = her life.

は marks the topic.

So 生活は means:

• as for her life
• speaking of her life

The sentence structure is basically:

• 彼女の生活 = her life
• は = topic marker
• 安定している = is stable

So the whole sentence is like:

• As for her life, it is stable.

This is very natural in Japanese.

If you used が instead, it would sound more like you are identifying or emphasizing her life as the thing that is stable. With は, the sentence feels more neutral and topic-based.

生活 means life, daily life, livelihood, or living situation, depending on context.

In this sentence, it does not mean life in the broad philosophical sense of one's whole existence. It more likely means:

• her day-to-day life
• her living conditions
• her lifestyle
• her personal situation

So 彼女の生活は安定している suggests that her everyday life or living circumstances are stable.

Because 安定している is the most natural way to say that something is in a stable state.

Here, 安定 is part of the verb 安定する, which means:

• to become stable
• to be stable
• to settle into stability

Then:

• 安定する → plain dictionary form
• 安定している → is in a stable state / has become stable and remains that way

For things like life, employment, prices, or society, Japanese very often uses 安定している.

While 安定だ may be possible in some contexts, 生活は安定している sounds much more natural than 生活は安定だ.

Not necessarily. 〜ている does not only mean an action in progress.

It has several common uses, including:

1. ongoing action

   • like eating, studying, walking

2. resulting state

   • something happened and the result continues

In 安定している, it usually expresses a continuing state:

• is stable
• has settled into stability and remains that way

So this sentence does not usually mean her life is becoming stable right now.
It means her life is in a stable condition.

Yes. 安定してる is a very common casual contraction of 安定している.

So:

• 安定している = neutral / standard
• 安定してる = more casual / conversational

Examples:

• 彼女の生活は安定している。
  neutral written or spoken style

• 彼女の生活は安定してる。
  casual speech

Both mean the same thing.

No. Japanese is normally written without spaces.

So the normal writing is:

彼女の生活は安定している。

Spaces are often added in teaching materials to help beginners see the parts more easily.

So this version:

彼女　の　生活　は　安定して　いる。

is just a learner-friendly formatting choice, not standard Japanese writing.

Yes. That is a very helpful literal breakdown.

A more natural English translation might be:

• Her life is stable.
• Her living situation is stable.

But the structure of the Japanese is very close to:

• As for her life, it is stable.

That literal version helps explain why は is there and how the sentence is built.