Tugas itu mustahil tanpa bantuan.

In this sentence, itu comes after tugas and points to a specific task: that task.

So:

• tugas = task, duty, assignment
• tugas itu = that task

In Malay, demonstratives like ini (this) and itu (that) usually come after the noun, not before it.

• buku itu = that book
• rumah ini = this house

In many contexts, itu can also feel a bit like the, because it helps make the noun specific.

Malay often leaves out the verb to be in simple statements.

So English:

• That task is impossible without help

Malay:

• Tugas itu mustahil tanpa bantuan

There is no need to add a word meaning is here. This is completely normal in Malay.

You may sometimes see adalah, but it is usually not needed in simple sentences like this.

Because mustahil is the predicate of the sentence.

The structure is:

• Tugas itu = subject
• mustahil = predicate adjective
• tanpa bantuan = prepositional phrase

So the sentence is built like:

• [Subject] + [description/comment about the subject]

This is normal Malay sentence order.

Compare:

• Cuaca itu panas. = The weather is hot.
• Rumah ini besar. = This house is big.

Mustahil is usually used as an adjective meaning impossible.

In this sentence, it describes the task:

• Tugas itu mustahil = That task is impossible

It can also appear in slightly broader ways in Malay, but for a learner, it is safest to understand it here as an adjective functioning as the main predicate.

It literally means without help or without assistance.

Breakdown:

• tanpa = without
• bantuan = help, assistance

So:

• tanpa bantuan = without help / without assistance

This phrase tells you the condition under which the task is impossible.

Bantuan is a noun related to the verb/root bantu, which means help or to help.

A useful pattern in Malay is that adding -an often creates a noun.

So:

• bantu = help / to help
• bantuan = help, assistance

Other examples of this kind of pattern:

• jawab = answer
• jawapan = answer (noun)

You do not need to analyze every word this way when speaking, but it is helpful for vocabulary building.

Malay does not use articles the same way English does.

There is no direct equivalent that must always appear for:

• a
• an
• the

So bantuan by itself can mean:

• help
• assistance
• the help
• some help

The exact meaning depends on context.

That is why tanpa bantuan is a natural way to say without help.

Yes, sometimes, but the meaning changes slightly.

• Tugas itu mustahil tanpa bantuan = That task is impossible without help
• Tugas mustahil tanpa bantuan = can sound more general or less natural in many contexts, depending on what you mean

If you are referring to a specific task already known in the conversation, itu is very natural and helpful.

So for a beginner, it is best to keep itu when you mean that task.

Yes, it is understandable, but it is less natural in ordinary speech.

Malay often prefers the simpler version:

• Tugas itu mustahil tanpa bantuan

Adding adalah can sound more formal, emphatic, or bookish in some contexts. In everyday Malay, it is usually unnecessary here.

So the version without adalah is the better default choice.

They are close, but not always identical in feel.

• mustahil = impossible
• tidak mungkin = not possible / impossible / unlikely, depending on context

In many situations, they can overlap. But mustahil often sounds stronger and more absolute.

For example:

• Itu mustahil. = That is impossible.
• Itu tidak mungkin. = That is not possible.

Both are common, but mustahil can sound a bit firmer or more definite.

The standard and most natural order is:

• Tugas itu mustahil tanpa bantuan.

Putting mustahil first is possible only in special rhetorical or literary styles, but it is not the normal beginner pattern.

So stick with:

• subject + predicate + other information

That will sound natural and clear.

A simple learner-friendly pronunciation guide is:

• Tugas ≈ TOO-gas
• itu ≈ EE-too
• mustahil ≈ moos-tah-HEEL
• tanpa ≈ TAHN-pah
• bantuan ≈ bahn-TOO-an

A rough full pronunciation:

• TOO-gas EE-too moos-tah-HEEL TAHN-pah bahn-TOO-an

A few notes:

• Malay pronunciation is usually quite regular.
• Each vowel is usually pronounced clearly.
• r is not in this sentence, so there is nothing especially difficult here for an English speaker.

A very useful pattern is:

• Noun + itu/ini + adjective + prepositional phrase

Using this sentence:

• Tugas itu = that task
• mustahil = impossible
• tanpa bantuan = without help

So you can build similar sentences like:

• Kerja itu susah tanpa pengalaman. = That work is difficult without experience.
• Rumah itu cantik dari jauh. = That house is beautiful from afar.
• Soalan itu mudah bagi saya. = That question is easy for me.

This is a very common and practical Malay structure.