Pinggang saya masih sakit, jadi saya tidak mahu duduk lama.

Pinggang literally refers to the waist/lower back area. In this sentence, it is most naturally understood as my lower back hurting.

This is one of those body-part words that can overlap a bit depending on context:

• pinggang = waist, lower back, the area around the hips
• belakang = back in a broader sense
• punggung = buttocks/rear

So if someone says Pinggang saya sakit, a learner may translate it as My waist hurts or My lower back hurts, but in everyday English My lower back hurts often sounds more natural.

In Malay, possession usually works as:

noun + possessor

So:

• pinggang saya = my waist/lower back
• rumah saya = my house
• nama saya = my name

This is different from English, where my comes before the noun. In Malay, saya comes after the noun to show possession.

Because the sentence has two clauses, and each clause has its own subject:

• Pinggang saya masih sakit
• jadi saya tidak mahu duduk lama

The first saya means my in pinggang saya. The second saya is the subject I in saya tidak mahu duduk lama.

Malay often repeats the subject where English might also repeat it:

• My back still hurts, so I don't want to sit long.

So the repetition is normal and clear.

Masih means still.

In this sentence:

• Pinggang saya masih sakit = My lower back still hurts

It usually comes before the adjective or verb it modifies:

• masih sakit = still hurt
• masih ada = still there / still exists
• masih belajar = still studying

So masih is placed naturally before sakit here.

It can mean either, depending on context.

Common uses:

• saya sakit = I am sick / ill
• kepala saya sakit = my head hurts
• pinggang saya sakit = my lower back hurts

So sakit has a wider meaning than English sick. When it is used with a body part, it usually means hurts / is painful.

Jadi here means so, therefore, or as a result.

It connects the first clause to the second:

• Pinggang saya masih sakit, jadi saya tidak mahu duduk lama.
• My lower back still hurts, so I don't want to sit for long.

In other contexts, jadi can also mean become:

• Dia jadi marah = He became angry

So the meaning of jadi depends on context. In this sentence, it is clearly a connector meaning so.

Yes. Tidak mahu is the full standard form meaning do not want.

Other possibilities:

• tak mahu = a very common spoken contraction of tidak mahu
• enggan = unwilling / reluctant, a bit more formal or literary

So these are all possible, but they differ in tone:

• saya tidak mahu duduk lama = standard, neutral
• saya tak mahu duduk lama = very natural in conversation
• saya enggan duduk lama = more formal, more like I am unwilling to sit for long

Malay does not need a separate word equivalent to English infinitive to in this structure.

So:

• mahu duduk = want to sit
• mahu makan = want to eat
• mahu balik = want to go home

The pattern is simply:

mahu + verb

That is completely normal in Malay.

Lama means long or a long time.

So:

• duduk lama = sit long / sit for a long time

Malay often expresses duration without needing a separate word like English for. The duration word simply follows the verb:

• tunggu lama = wait a long time
• tidur lama = sleep for a long time
• duduk lama = sit for a long time

So even though English says sit for a long time, Malay can just say duduk lama.

Yes, duduk lama is natural. It means sit for a long time or remain seated for long.

Depending on context, speakers might also say:

• duduk terlalu lama = sit too long
• duduk lama sangat = sit for too long / sit very long
• duduk terlalu lama di kerusi = sit too long in a chair

The original sentence sounds natural and clear, especially in everyday speech.

Yes, but the tone changes.

• mahu = want; standard and common
• ingin = wish/desire; a bit more formal or literary
• nak = spoken, informal, very common in conversation

Examples:

• saya tidak mahu duduk lama = neutral, standard
• saya tidak ingin duduk lama = more formal
• saya tak nak duduk lama = very conversational

So mahu is a good middle-ground choice: natural and standard.

It is helpful, though punctuation in informal Malay can be flexible.

The comma shows that:

• the first clause gives the reason
• the second clause gives the result

So:

• Pinggang saya masih sakit, jadi saya tidak mahu duduk lama.

This punctuation makes the sentence easier to read. In casual texting, some people might omit the comma, but in standard writing it is a good choice.

Yes. A very natural spoken version might be:

• Pinggang saya masih sakit, jadi saya tak mahu duduk lama.
• Pinggang saya masih sakit, jadi saya tak nak duduk lama.

These are more conversational because:

• tak replaces tidak
• nak can replace mahu

The original sentence is already correct and natural, but it sounds slightly more standard than casual everyday speech.