Selepas hujan, longkang di depan rumah penuh dengan daun basah.

Selepas means after.

In this sentence, Selepas hujan means After the rain or more naturally in English, After it rained.

Yes, you can often also use:

• sesudah = after
• lepas = after

But the tone can differ a little:

• selepas: very common, neutral
• sesudah: a bit more formal
• lepas: common in speech, slightly less formal in some contexts

So all of these could work:

• Selepas hujan...
• Sesudah hujan...
• Lepas hujan...

They all sound natural, though selepas is a very safe standard choice.

Malay often leaves out words that are understood from context.

• hujan = rain
• turun = fall / come down

So selepas hujan literally looks like after rain, but it naturally means after the rain or after it rained.

You could say:

• Selepas hujan turun...

but it is less concise and often unnecessary. Native speakers commonly just say selepas hujan.

This is very normal in Malay: if the event is obvious, the verb can be omitted.

Longkang means drain, especially a roadside drain, gutter, or open drainage channel.

So in this sentence, it refers to the drain in front of the house, not something like an indoor sink drain.

A few related words:

• longkang = drain / gutter
• saliran = drainage / drainage system, more formal
• parit = ditch / trench / drain, depending on context

Here, longkang is the most natural everyday word.

Di is a preposition meaning at / in / on for location.

So:

• di depan rumah = in front of the house

Breakdown:

• di = at / in
• depan = front
• rumah = house

Malay usually needs di for locations:

• di rumah = at home
• di sekolah = at school
• di depan rumah = in front of the house

Without di, depan rumah can still appear in some structures, but di depan rumah is the normal full expression for location here.

Also note: di as a preposition is written separately, unlike the passive prefix di-, which is attached to a verb.

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

So:

• longkang can mean a drain or the drain
• rumah can mean a house or the house
• daun basah can mean wet leaves or the wet leaves, depending on context

The listener figures it out from context.

In this sentence, English naturally uses the drain in front of the house, but Malay simply says:

• longkang di depan rumah

This is completely normal.

Malay often does not use a verb equivalent to is / am / are when linking a subject to an adjective or description.

So:

• longkang ... penuh dengan daun basah
• literally: the drain ... full with wet leaves
• natural English: the drain ... is full of wet leaves

Malay can simply place the description after the noun phrase:

• Rumah itu besar = That house is big
• Air ini sejuk = This water is cold
• Longkang itu penuh = The drain is full

So the missing is is not actually missing in Malay grammar; it is just not required here.

Penuh dengan means full of.

Breakdown:

• penuh = full
• dengan = with

So:

• penuh dengan daun basah = full of wet leaves

You may sometimes hear just penuh followed by something in less careful speech, but penuh dengan is the standard and clearest pattern.

Examples:

• Bilik itu penuh dengan buku. = The room is full of books.
• Jalan penuh dengan kereta. = The road is full of cars.

So in your sentence, penuh dengan is the natural structure.

In Malay, adjectives usually come after the noun.

So:

• daun basah = wet leaves
• rumah besar = big house
• air sejuk = cold water

This is one of the most important word-order differences from English.

So:

• daun = leaves
• basah = wet

Together:

• daun basah = wet leaves

If you said basah daun, it would sound wrong in normal Malay word order.

Daun can mean leaf or leaves depending on context.

Malay nouns are often not marked for plural unless needed.

So:

• daun = leaf / leaves
• buku = book / books
• kereta = car / cars

Context tells you the number.

Because the drain is full of them, English naturally translates this as leaves, not leaf.

If you really want to mark plurality in Malay, you can sometimes use reduplication:

• daun-daun = leaves

But in many ordinary sentences, this is unnecessary. In fact, penuh dengan daun already strongly suggests more than one leaf.

Malay commonly puts the main noun first and then adds a phrase to describe or locate it.

So:

• longkang di depan rumah
• literally: drain at front house
• natural meaning: the drain in front of the house

The noun being talked about is longkang, and di depan rumah tells you which drain.

This is a common Malay pattern:

• orang di kedai = the person at the shop
• kereta di luar = the car outside
• bilik di tingkat atas = the room upstairs

A form like rumah punya longkang would not be the normal way to say this in standard Malay.

Not naturally in this sentence.

Use penuh dengan, not penuh oleh.

• dengan is the normal word after penuh
• oleh is usually used in passive constructions to mean by

For example:

• Pintu itu dibuka oleh Ali. = The door was opened by Ali.

But with penuh, the natural pattern is:

• penuh dengan air
• penuh dengan orang
• penuh dengan daun

So penuh dengan daun basah is correct and idiomatic.

It can be rearranged a little, though the original is very natural.

Original:

• Selepas hujan, longkang di depan rumah penuh dengan daun basah.

Possible variation:

• Longkang di depan rumah penuh dengan daun basah selepas hujan.

Both are understandable. The difference is mostly emphasis:

• Selepas hujan, ... puts the time background first
• ... selepas hujan puts the time expression later

The first version sounds especially natural because it sets the scene first: After the rain, ...

It is mostly neutral standard Malay.

Why?

• selepas sounds standard and natural
• longkang is an everyday word
• penuh dengan is standard
• the sentence structure is clear and normal

In more casual speech, someone might say:

• Lepas hujan, longkang depan rumah penuh dengan daun basah.

That is a bit more conversational because:

• lepas is more casual than selepas
• di may sometimes be dropped in very informal speech before certain location words, though the full standard form is still di depan rumah

So the original sentence is a good model for learners.