Dia membersihkan najis itu.

Dia can mean he or she. Malay third-person singular pronouns usually do not mark gender, so you have to understand it from context.

So Dia membersihkan najis itu could mean either:

• He cleaned the feces.
• She cleaned the feces.

Membersihkan can be broken down like this:

• bersih = clean
• meN- ... -kan = a common verb-forming pattern

So:

• bersih = clean
• membersihkan = to clean something / to make something clean

This is very common in Malay: a root word gets prefixes and suffixes added to create a verb with a more specific meaning.

In this sentence, -kan helps make the verb transitive, meaning it acts on a direct object.

So:

• membersihkan = to clean something
• the thing being cleaned is najis itu

You can think of it roughly as make clean or clean up.

The prefix is often written as meN- in grammar explanations because its nasal sound changes depending on the first sound of the root.

Here the root is bersih, which begins with b, so meN- becomes mem-:

• meN- + bersihkan → membersihkan

This kind of sound change is normal in Malay verb formation.

Najis usually means feces, excrement, droppings, or something considered filthy/impure.

Depending on context, it can also have a more specific religious meaning, especially in Islamic contexts, referring to something ritually impure.

In this sentence, the most natural meaning is probably feces/excrement.

In Malay, demonstratives like ini (this) and itu (that/the) usually come after the noun.

So:

• najis itu = that feces / the feces
• buku itu = that book / the book

This is different from English, where this/that come before the noun.

It can mean either, depending on context.

Malay itu often works like:

• that
• or sometimes simply the, when referring to something already known in the conversation

So najis itu could be understood as:

• that excrement
• the excrement

Yes, this sentence uses the basic Subject–Verb–Object order, just like English:

• Dia = subject
• membersihkan = verb
• najis itu = object

So the structure is:

• Dia membersihkan najis itu
• He/She cleaned the feces

Malay verbs usually do not change form for tense the way English verbs do.

So membersihkan by itself does not tell you whether the action is:

• present: cleans / is cleaning
• past: cleaned
• future: will clean

The time is usually understood from context or added with time words such as:

• semalam = yesterday
• tadi = earlier
• sekarang = now
• esok = tomorrow

So this sentence could mean different things depending on context, though many translations will choose cleaned if the situation is clearly in the past.

Yes, you can.

• Dia membersihkan najis itu = He/She cleaned that/the feces
• Dia membersihkan najis = He/She cleaned feces / excrement

Leaving out itu makes the noun less specifically identified. Adding itu points to something specific already known or visible.

Yes, especially in colloquial Malay, you may hear Dia bersihkan najis itu.

But there is a difference in style:

• membersihkan = more standard/full form
• bersihkan = often more conversational or shortened in speech

In careful standard Malay, membersihkan is the safer form to learn first.

Dia is very common and natural in everyday Malay.

In more formal written Malay, you may also see ia, especially as a subject. But in normal conversation, dia is extremely common.

So for learners, dia is a very useful and natural pronoun to know.

A simple approximate pronunciation is:

• Dia → dee-ah
• membersihkan → mem-ber-seeh-kan
• najis → nah-jis
• itu → ee-too

A rough full pronunciation: dee-ah mem-ber-seeh-kan nah-jis ee-too

Keep in mind that Malay pronunciation is generally quite regular compared with English spelling.