Ibu melipat pakaian yang sudah kering.

Ibu can mean either mother or a respectful form of address for an adult woman, like Mrs., ma’am, or lady.

In a sentence by itself like Ibu melipat pakaian yang sudah kering, it often means Mother if the context is about family. But in other contexts, it could also refer to a woman respectfully.

So the exact meaning depends on context, not just the word alone.

Melipat comes from the base word lipat, which means to fold.

The prefix meN- is a very common Indonesian verb prefix that often makes an active verb. Here:

• lipat = fold
• melipat = to fold / is folding / folds

This is the normal active verb form in standard Indonesian.

Also, the prefix changes shape depending on the first sound of the root. With lipat, it becomes me- + lipat → melipat.

This follows the basic Indonesian word order:

• Subject + Verb + Object

So:

• Ibu = subject
• melipat = verb
• pakaian = object

This is very similar to normal English word order:

• Mother folds the clothes

So for an English speaker, the basic structure here is quite straightforward.

Indonesian does not have articles like the, a, or an.

So pakaian can mean:

• clothes
• the clothes
• some clothes
• clothing

The exact meaning depends on context.

In this sentence, because the clothes are identified by the phrase yang sudah kering, English naturally translates it as the clothes that are already dry or the dry clothes.

It can mean either, depending on context.

• pakaian often refers to clothes/clothing in a general sense.
• In this sentence, it most naturally means clothes or the clothes.

A learner may notice that English often uses plural clothes, but Indonesian nouns do not have to show singular/plural in the same way.

So pakaian does not need a special plural ending here.

Yang introduces a phrase that describes the noun before it.

Here:

• pakaian = clothes
• yang sudah kering = that are already dry / which are already dry

So yang works like that, which, or who in English relative clauses.

The whole phrase:

• pakaian yang sudah kering = the clothes that are already dry

This is one of the most common uses of yang in Indonesian.

Sudah usually means already, but its function is broader than the English word already.

In this sentence, sudah kering means:

• already dry
• dry now
• has become dry

It shows that the state of being dry has been completed.

So yang sudah kering describes clothes that have finished drying.

In Indonesian, many words that are adjectives in English can act very naturally in predicate or descriptive positions without needing a verb like to be.

Here, kering means dry.

So:

• sudah kering = already dry / has become dry

Indonesian does not need a separate word for is in this kind of structure.

That is why you do not see something equivalent to is dry written out.

Yes, but the meaning is a little different in nuance.

• pakaian yang sudah kering = the clothes that are already dry
• pakaian kering = dry clothes

The version with yang sudah is more explicit. It emphasizes that the clothes have gone through the process of drying and are now dry.

The shorter version pakaian kering is possible, but it may sound less specific about that completed process.

Indonesian verbs do not change form for tense the way English verbs do.

So melipat does not by itself mean specifically:

• folds
• is folding
• folded
• will fold

The time is understood from context or from time words.

In this sentence, English might translate it as:

• Mother is folding the clothes that are already dry
• Mother folds the clothes that are already dry

Both can be possible depending on context.

Because in this sentence sudah describes kering, not melipat.

Compare:

• Ibu melipat pakaian yang sudah kering
  = Mother folds the clothes that are already dry

Here, sudah tells us about the condition of the clothes.

But if you said:

• Ibu sudah melipat pakaian
  = Mother has already folded the clothes

then sudah would relate to the action of folding.

So the position of sudah changes what it applies to.

Yes, that is a very good way to think about it.

Literally, it is closer to:

• the clothes that are already dry

But in natural English, it can often be translated more smoothly as:

• the already dry clothes
• the dry clothes

So Indonesian often uses yang + description where English may use either:

• a relative clause, or
• an adjective directly before the noun

Yes, it is natural and standard.

It sounds like normal Indonesian and uses very common vocabulary and grammar:

• Ibu = mother / ma’am
• melipat = fold
• pakaian = clothes
• yang sudah kering = that are already dry

A speaker might also say similar things like:

• Ibu melipat baju yang sudah kering.
• Ibu sedang melipat pakaian yang sudah kering.

The version with sedang would make the ongoing action more explicit, but your original sentence is already perfectly normal.