Kami memperbaharui perjanjian sewa.

Because kami means we, but not including the listener.

Malay has two common words for we:

• kami = exclusive we
• kita = inclusive we

So Kami memperbaharui perjanjian sewa means that we renewed the rental agreement, but the person being spoken to is not part of that we.

If the listener were included, you would use kita instead.

No. Malay verbs usually do not change form for tense.

So memperbaharui by itself can mean:

• renew
• renewed
• are renewing
• will renew

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

• sudah = already
• sedang = currently
• akan = will

Examples:

• Kami sudah memperbaharui perjanjian sewa. = We have already renewed the rental agreement.
• Kami akan memperbaharui perjanjian sewa. = We will renew the rental agreement.

It is built from the root baharu, meaning new.

The verb memperbaharui means something like:

• to make new again
• to renew
• to update

A learner-friendly way to think of it is:

• baharu = new
• memperbaharui = renew / make new again

The ending -i helps make it a transitive verb, so it takes an object directly:

• memperbaharui perjanjian = renew the agreement

You may also see related forms such as pembaharuan = renewal / reform / обновление-like noun meaning renewal or reform.

It is a common and understandable choice, especially in formal or administrative contexts. You may also encounter membaharui in similar meanings.

In real usage, Malay speakers use several ways to express this idea, for example:

• memperbaharui perjanjian sewa
• membaharui perjanjian sewa
• menyambung sewa = extend the rental
• memperbaharui kontrak sewa = renew the lease contract

For a learner, the important point is that memperbaharui here means renew.

Janji means promise.

Perjanjian is a noun formed from that root and usually means:

• agreement
• contract
• arrangement
• sometimes treaty, depending on context

So the idea is:

• janji = a promise
• perjanjian = an agreement/contract based on a promise or mutual commitment

In this sentence, perjanjian is the formal noun agreement.

Because Malay usually puts the main noun first and the describing noun after it.

So:

• perjanjian sewa = agreement of rent = rental agreement / lease agreement

The head word is perjanjian and sewa tells you what kind of agreement it is.

This is a very common Malay pattern:

• rumah sewa = rental house
• kad kredit = credit card
• kereta polis = police car

English often works backward compared with Malay, so this word order can feel unusual at first.

It can cover both ideas, depending on context.

Sewa is the general word for renting or leasing. So perjanjian sewa can often be translated as:

• rental agreement
• lease agreement
• tenancy agreement

The best English choice depends on the legal or practical context. In everyday learning, rental agreement is a good translation.

Because Malay normally does not use articles like English a, an, or the.

So perjanjian sewa can mean:

• a rental agreement
• the rental agreement

Context tells you which one is meant.

If Malay speakers want to be more specific, they often use context, demonstratives, or other words, for example:

• perjanjian sewa itu = that / the rental agreement
• satu perjanjian sewa = one / a rental agreement

The sentence follows the normal Malay pattern:

• Subject + Verb + Object

So here:

• Kami = subject
• memperbaharui = verb
• perjanjian sewa = object

That makes it very similar to normal English word order:

• We renewed the rental agreement.

This is one reason Malay sentence structure often feels quite approachable to English speakers.

It sounds neutral to fairly formal.

Reasons:

• perjanjian sewa is a formal/legal kind of phrase
• memperbaharui also sounds more formal than a very casual everyday alternative

In casual speech, people might say something simpler, such as:

• Kami sambung sewa. = We extended the rental.
• Kami renew kontrak sewa. = We renewed the lease contract.
  This kind of English-Malay mixing is common in casual conversation.

But the original sentence is perfectly natural for standard written Malay, especially in business, legal, or administrative settings.

Malay nouns usually do not have a special plural ending like English -s.

So perjanjian sewa could in theory mean:

• rental agreement
• rental agreements

In this sentence, it will usually be understood as singular from context.

If a speaker really wants to make the plural explicit, they can do so in several ways, for example:

• perjanjian-perjanjian sewa = rental agreements
• adding a number or quantity word

But in ordinary Malay, context usually does the job.