Kita menjaga Bumi.

Not quite. Kita means we, but specifically inclusive we: it includes the speaker and the listener.

So Kita menjaga Bumi suggests we all take care of the Earth, including the person being spoken to.

By contrast, kami means we in an exclusive sense: the speaker and others, but not the listener.

• kita = we, including you
• kami = we, not including you

This is a very important distinction in Malay, and English does not normally make it.

Jaga is the root word, meaning things like guard, look after, or take care of.

Menjaga is the active verb form made with the meN- prefix:

• jaga → menjaga

In sentences like this, menjaga sounds more like the normal standard verb for to take care of or to look after something.

Very roughly:

• jaga = the base word
• menjaga = to take care of / taking care of

In everyday speech, people do sometimes use shorter forms in casual contexts, but menjaga is the standard form here.

No. Malay verbs do not change the way English verbs do for tense.

So menjaga by itself does not specifically mean:

• present
• past
• future

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

• sekarang = now
• semalam = yesterday
• esok = tomorrow
• sedang = in the middle of doing something / currently

So Kita menjaga Bumi can naturally be understood as a general present statement like We take care of the Earth or We are taking care of the Earth, depending on context.

Yes, in this sentence it is basically the same pattern:

• Kita = subject
• menjaga = verb
• Bumi = object

So it follows Subject–Verb–Object:

Kita menjaga Bumi
= We take care of the Earth

This is one reason simple Malay sentences can feel quite approachable to English speakers.

Because here Bumi refers to Earth as the name of the planet, so it is treated like a proper noun.

• Bumi = Earth the planet

If written as bumi with a lowercase b, it can also mean earth, land, or ground, depending on context.

So capitalization helps show that this sentence is about the planet, not just soil or land.

Malay does not use articles like English a, an, and the in the same way.

So Bumi can mean Earth or the Earth, depending on context.

This is normal in Malay. You do not need to add a separate word for the here.

That means:

• Bumi = Earth / the Earth

The meaning is usually perfectly clear from context.

Menjaga has a range of related meanings, including:

• to guard
• to look after
• to take care of
• sometimes to protect

In Kita menjaga Bumi, the most natural sense is usually:

• We take care of the Earth
• We look after the Earth

It gives the idea of caring for and preserving the Earth, not just physically standing guard over it.

So the exact English translation can vary a little, but the core idea is responsible care.

You can, but it changes the feel.

Kita menjaga Bumi is a clear full sentence meaning We take care of the Earth.

Menjaga Bumi by itself often sounds more like:

• a slogan
• a title
• a heading
• or a general idea like Taking care of the Earth

Malay often allows subjects to be omitted when they are understood, but in a simple teaching sentence like this, keeping kita makes the meaning clearer.

A simple pronunciation guide is:

• Kita ≈ kee-tah
• menjaga ≈ muhn-jah-gah
• Bumi ≈ boo-mee

A few helpful points:

• i is usually like the ee in see
• u is usually like the oo in food
• g in menjaga is a hard g, as in go
• stress in Malay is usually not as strong or dramatic as in English

So the whole sentence is roughly:

kee-tah muhn-jah-gah boo-mee

It is natural and grammatical, but it also has a slightly slogan-like or educational feel because of the topic.

Kita menjaga Bumi works well in contexts like:

• environmental education
• campaigns
• posters
• children’s materials
• public messages

In everyday conversation, a speaker might also use other expressions depending on what they want to emphasize, such as caring for nature, protecting the environment, or keeping the planet clean. But this sentence itself is perfectly good Malay.