Batas itu penuh dengan rumpai, jadi kami merumput.

In this sentence, batas most likely means a garden bed, raised planting bed, or a plot edge/ridge used for planting.

So Batas itu is something like:

• that planting bed
• that garden bed
• that plot

This word can be a little context-dependent. In other situations, batas can also relate to a boundary or limit, but here the farming/gardening context and the mention of rumpai make planting bed the best fit.

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

So:

• batas itu = that garden bed
• rumah itu = that house
• buku ini = this book

This is different from English, where this/that comes before the noun.

Penuh dengan means full of or filled with.

So:

• Batas itu penuh dengan rumpai = That garden bed was full of weeds

You can think of it as:

• penuh = full
• dengan = with

This is a very common pattern in Malay:

• bilik itu penuh dengan orang = the room was full of people
• langit penuh dengan bintang = the sky was full of stars

Very often, yes, especially in everyday modern Malay. Penuh dengan is the most natural and common phrasing for full of.

For example:

• bakul itu penuh dengan buah
• jalan itu penuh dengan kereta

You may sometimes see other structures, especially in more formal writing, such as:

• dipenuhi rumpai = filled with weeds / covered in weeds

But for learners, penuh dengan is a very useful and natural expression to remember.

Rumpai means weeds.

It refers to unwanted grass or wild plants growing where they are not wanted, especially in a garden or field.

A very common longer form is:

• rumpai liar = wild weeds / weeds

But often just rumpai is enough when the meaning is clear.

Yes, jadi can mean to become, but it also very commonly works as a connector meaning:

• so
• therefore
• as a result

In this sentence:

• Batas itu penuh dengan rumpai, jadi kami merumput.
• The garden bed was full of weeds, so we weeded.

So here jadi links cause and result.

This use is extremely common in spoken and written Malay.

Here merumput means to weed or to clear grass/weeds.

It is built from:

• rumput = grass
• meN- verb prefix → merumput

So the noun rumput becomes a verb meaning something like to deal with grass/weeds.

This kind of word formation is common in Malay, where a noun or root can become a verb with meN-.

One small note: depending on region and context, merumput can have other grass-related meanings too, so context matters. In this sentence, because rumpai is mentioned, the meaning is clearly to weed.

Good question. Rumput and rumpai are related in meaning, but they are not exactly the same word.

• rumput = grass
• rumpai = weeds

The verb merumput comes from rumput, but in context it can refer to clearing unwanted grass or weeds. So even though the sentence says rumpai, the verb used is merumput.

Languages often work like this: the noun used in one part of a sentence does not always have to match the exact root used in the verb.

Malay distinguishes between two kinds of we:

• kami = we, excluding the listener
• kita = we, including the listener

So kami merumput means we weeded, but not you.

If the speaker were including the person being spoken to, it would be:

• kita merumput = we weeded / we should weed, including you

This is an important difference for English speakers, because English has only one we.

Malay does not change the verb the way English does for past tense.

So merumput can mean:

• weed
• are weeding
• weeded
• will weed

The time is usually understood from:

• context
• time words
• the situation being described

In your sentence, the meaning is understood from the overall context: the bed was full of weeds, so we weeded.

If you wanted to make the past clearer, Malay could add words such as:

• sudah = already
• telah = already / formal past marker

For example:

• jadi kami sudah merumput
• jadi kami telah merumput

But often Malay leaves this unstated.

Yes. By itself, Malay does not force you to choose between is and was.

So literally, it could be understood as:

• That bed is full of weeds
• That bed was full of weeds

The surrounding context or the translation provided will tell you which one is intended.

That is very normal in Malay.

Mostly, yes. The sentence follows a straightforward order:

• Batas itu = subject/topic
• penuh dengan rumpai = description
• jadi = so
• kami merumput = result clause

So the structure is quite close to English:

• That bed was full of weeds, so we weeded.

This makes sentences like this relatively learner-friendly.

Yes. Batas itu dipenuhi rumpai is a natural alternative and means something like:

• That bed was filled with weeds
• That bed was overrun with weeds

Compared with penuh dengan rumpai:

• penuh dengan rumpai sounds very direct and everyday
• dipenuhi rumpai can sound a bit more formal or descriptive

Both are good Malay, but penuh dengan is often easier for beginners to use.

The comma before jadi is helpful because it separates the cause from the result:

• Batas itu penuh dengan rumpai, jadi kami merumput.

This is similar to English:

• The bed was full of weeds, so we weeded.

In informal writing, people may sometimes leave punctuation out, but the comma is a good standard choice.

Not always, but jadi is very common and natural.

Other possibilities include:

• maka = so / thus, more formal or literary
• oleh itu = therefore, more formal
• sometimes no connector at all, if the relationship is clear

But for everyday Malay, jadi is one of the most useful words for expressing so or therefore.