Saya mahu sembilan buku.

A simple word-by-word breakdown is:

• Saya = I
• mahu = want
• sembilan = nine
• buku = book / books

So the sentence structure is very direct: I want nine books.

Malay usually follows a basic Subject + Verb + Object order, much like English.

• Saya = subject
• mahu = verb
• sembilan buku = object

So:

• Saya mahu sembilan buku = I want nine books

That word order is the normal and natural one.

In Malay, numbers normally come before the noun they count.

Examples:

• satu buku = one book
• tiga buku = three books
• sembilan buku = nine books

So sembilan buku is the normal way to say nine books.

Malay nouns usually do not change form for plural. The same word buku can mean:

• book
• books

The context tells you which one is meant.
Here, sembilan already makes it clear that there is more than one, so no plural ending is needed.

Malay does not use articles in the same way English does.

So:

• buku can mean a book, the book, or just book/books, depending on context.

In Saya mahu sembilan buku, the meaning is naturally understood without needing an article.

Not necessarily. Saya mahu sembilan buku is acceptable and natural.

However, Malay sometimes uses classifiers, especially in more careful or formal counting. You may also hear:

• Saya mahu sembilan buah buku

For books, buah is a common general classifier. In some contexts, a more specific classifier like naskhah can be used for books or publications:

• Saya mahu sembilan naskhah buku

But in everyday speech, people often leave the classifier out, so sembilan buku is very common.

Both can mean want.

• mahu = more standard / neutral
• nak = more casual, very common in speech

So these are both possible:

• Saya mahu sembilan buku
• Saya nak sembilan buku

The second one sounds more conversational. The first one sounds a bit more standard or careful.

Sometimes, yes, but it depends on the variety of Malay and the setting.

• mahu is the standard form in formal Malaysian Malay writing.
• mau may appear in colloquial speech or in some regional usage, and it is also common in Indonesian.

If you are learning standard Malay, mahu is the safer form to use.

Saya is the safest and most widely usable word for I. It is polite and neutral.

Another common word is:

• aku = I, but more informal and personal

So:

• Saya mahu sembilan buku = polite/neutral
• Aku mahu sembilan buku = more casual, depending on who you are talking to

If you are unsure, use saya.

It is grammatical and understandable, but it can sound a little direct depending on the situation.

If you are simply stating what you want, it is fine:

• Saya mahu sembilan buku

But in a shop or polite interaction, people might say something a bit softer or fuller, such as:

• Saya mahu membeli sembilan buku = I want to buy nine books
• Saya nak beli sembilan buku = casual I want to buy nine books

So the original sentence is correct, but context affects how natural or polite it feels.

Not if you mean nine books.

• sembilan buku = nine books
• buku sembilan would sound like book number nine or the ninth book, depending on context

So if you want to count the books, keep the number before the noun:

• Saya mahu sembilan buku

A rough English-friendly guide is:

• Saya ≈ SAH-yuh
• mahu ≈ MAH-hoo
• sembilan ≈ sem-BEE-lan
• buku ≈ BOO-koo

A fuller rough pronunciation of the whole sentence:

• SAH-yuh MAH-hoo sem-BEE-lan BOO-koo

Exact pronunciation varies a little by speaker, but that will get you close.

In some contexts, yes. Literally, mahu means want, but in real conversation it can sometimes function similarly to would like, depending on tone and situation.

Still, English would like often sounds softer than want, so in polite situations Malay speakers may choose wording that sounds less blunt, depending on context.

So:

• Saya mahu sembilan buku = literally I want nine books
• In context, it may come across as I’d like nine books, but that depends on how it is said.