Kami siapkan misi itu.

In Malay, both can mean we, but they are not interchangeable:

• kami = we, but not including the person being spoken to
• kita = we, including the person being spoken to

So Kami siapkan misi itu means the speaker’s group did it, but the listener is not part of that group.

Siapkan comes from siap, which means ready or finished.

When the suffix -kan is added, it often gives the meaning make something ready, prepare, or complete/finish something.

So siapkan can mean things like:

• prepare
• get ready
• complete
• finish

With misi (mission), it often suggests completing or carrying through the mission, depending on context.

Because siap by itself is usually not used as a transitive verb meaning do/prepare something.

Compare:

• Kami siap. = We are ready / We are finished.
• Kami siapkan misi itu. = We prepare/complete that mission.

So:

• siap = describes a state
• siapkan = acts on an object

Since misi itu is the thing being acted on, siapkan is the right form.

That is a very common learner question.

In more formal or standard Malay, the active transitive form would often be:

• Kami menyiapkan misi itu.

The version without meN-:

• Kami siapkan misi itu.

is common in more casual, conversational, or less formal usage.

So the difference is often about register:

• menyiapkan = more formal/standard
• siapkan = more colloquial/direct

If you are writing very formal Malay, menyiapkan is usually safer.

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

So Kami siapkan misi itu can depend on context. It might be understood as:

• We complete that mission
• We completed that mission
• We will complete that mission

If you want to make the time clearer, Malay often adds time words or aspect markers:

• Kami sudah siapkan misi itu. = We have already completed that mission.
• Kami sedang siapkan misi itu. = We are working on that mission.
• Kami akan siapkan misi itu. = We will complete that mission.

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

So:

• misi itu = that mission
• buku ini = this book

This is the normal Malay word order, even though it is the opposite of English.

Misi itu is the object of the verb.

The basic structure is:

• Kami = subject
• siapkan = verb
• misi itu = object

So the sentence follows a very common Malay pattern:

Subject + Verb + Object

Yes, sometimes.

The normal order is:

• Kami siapkan misi itu.

But you can also say:

• Misi itu kami siapkan.

This puts more focus on misi itu. It is a bit like saying:

• That mission, we completed it.

Both are possible, but the original sentence is the more basic, neutral order.

Sometimes, yes, especially if the subject is already obvious from context.

For example, in conversation, someone might simply say:

• Siapkan misi itu.

But that could also sound like a command depending on context, so keeping kami makes the meaning clearer:

• Kami siapkan misi itu. = We are the ones doing it.

In standard writing, it is usually better to keep the subject unless there is a clear reason to omit it.

It can often work as either, depending on context.

Literally:

• misi itu = that mission

But in natural translation, it can also mean:

• the mission

if both speaker and listener already know which mission is being talked about.

So itu often marks something as specific and identifiable, not just physically far away.

A more formal version would usually be:

• Kami menyiapkan misi itu.

If you want to make it clearly completed, you could also say:

• Kami telah menyiapkan misi itu.
• Kami sudah menyiapkan misi itu.

So if you are aiming for formal written Malay, menyiapkan is the form to remember.