Walaupun dia keletihan, dia masih pergi ke kelas.

Walaupun means although / even though. It introduces a contrast:

• Walaupun dia keletihan = Although he/she was tired
• dia masih pergi ke kelas = he/she still went to class

So the sentence means that being tired did not stop the person from going.

Malay often repeats the subject in each clause, especially when the sentence has two parts.

• Walaupun dia keletihan = Although he/she was tired
• dia masih pergi ke kelas = he/she still went to class

In English, we also usually repeat the subject: Although she was tired, she still went to class.

So this is normal and natural in Malay.

Yes. Dia can mean either he or she. Malay does not normally mark gender in pronouns the way English does.

So without more context, dia could refer to a man or a woman.

Keletihan means fatigue, tiredness, or the state of being tired. It comes from letih = tired.

In this sentence, dia keletihan means he/she was tired or he/she was exhausted.

A learner may expect dia letih, and that is also correct and very common.

Compare:

• dia letih = he/she is tired
• dia keletihan = he/she is tired / in a state of fatigue / exhausted

So keletihan is more noun-like in form, but in sentences like this it works naturally as the predicate.

Both can mean he/she is tired, but there is a slight nuance:

• dia letih = simpler, more direct, very common in everyday speech
• dia keletihan = sounds a bit more formal or descriptive, emphasizing a state of exhaustion/fatigue

So:

• Walaupun dia letih, dia masih pergi ke kelas.
• Walaupun dia keletihan, dia masih pergi ke kelas.

Both are good Malay. The version with keletihan may feel a little stronger or more formal.

Masih means still.

It shows that despite being tired, the person still did the action:

• dia masih pergi ke kelas = he/she still went to class

Without masih, the sentence would still make sense:

• Walaupun dia keletihan, dia pergi ke kelas.

But masih adds the idea of persistence or continuation, similar to English still.

The preposition ke usually means to, and it is used for movement toward a place.

• pergi ke kelas = go to class
• pergi ke sekolah = go to school
• pergi ke rumah = go home/to the house

So ke kelas marks the destination.

In very informal spoken Malay, people may sometimes drop words, but standard Malay uses ke here.

It can mean class in the sense of a lesson or class session, and sometimes by extension the classroom context as well. In pergi ke kelas, the most natural English translation is go to class, meaning attend a class/lesson.

So the focus is usually on attending class, not necessarily the physical room alone.

Malay verbs do not change form for tense the way English verbs do. Tense is usually understood from context, time words, or the situation.

So:

• dia keletihan could mean he/she is tired or was tired
• dia pergi ke kelas could mean he/she goes/went to class

If the meaning shown to the learner gives a past meaning, then we understand it as past. If the context is present or habitual, it could be understood differently.

Malay often leaves tense unstated unless it needs to be made explicit.

Yes.

Common alternatives:

• meskipun dia keletihan, dia masih pergi ke kelas
• walau dia keletihan, dia masih pergi ke kelas

These also mean although / even though.

Nuance:

• walaupun = very common and standard
• meskipun = also standard, sometimes slightly more formal/literary
• walau = shorter, often a bit more literary or stylistic, though also common

The comma is helpful because the sentence begins with a subordinate clause:

• Walaupun dia keletihan, dia masih pergi ke kelas.

It separates although he/she was tired from the main clause he/she still went to class.

In casual writing, people may omit punctuation, but in standard writing the comma is a good idea here.

Yes. You can put the main clause first:

• Dia masih pergi ke kelas walaupun dia keletihan.

This means the same thing: He/She still went to class although he/she was tired.

Both word orders are natural. Starting with walaupun gives a little more emphasis to the contrast.

It is mostly neutral standard Malay.

Why:

• walaupun is standard and common
• masih pergi ke kelas is straightforward and natural
• keletihan makes it sound a little more polished than letih, but not overly formal

A more casual everyday version would often be:

• Walaupun dia letih, dia masih pergi ke kelas.

Usually masih comes before the verb:

• dia masih pergi ke kelas

That is the most natural placement.

You should generally think of the pattern as:

• subject + masih + verb

Examples:

• dia masih belajar = he/she is still studying
• mereka masih menunggu = they are still waiting

So in this sentence, dia masih pergi ke kelas is the correct and natural word order.