Pelupa itu lupa minum kapsul dan suplemen.

Pelupa means a forgetful person or someone who is forgetful.

It comes from lupa = to forget / forgetful, but pelupa specifically refers to a person with that habit or trait.

So:

• lupa = to forget
• pelupa = a forgetful person

In this sentence, Pelupa itu means that forgetful person or, depending on context, the forgetful one.

Because they do different jobs in the sentence.

• pelupa = forgetful person → this is the subject
• lupa = forgot → this is the main verb

So the structure is basically:

• Pelupa itu = the forgetful person
• lupa = forgot
• minum kapsul dan suplemen = to take/drink capsules and supplements

It is a bit like English The forgetful person forgot...
The repetition sounds natural enough in Indonesian, though it is slightly playful because both words come from the same root.

In Indonesian, itu usually comes after the noun it refers to.

So:

• pelupa itu = that forgetful person
• rumah itu = that house
• buku itu = that book

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

Also, in many contexts, itu can function a bit like the, so pelupa itu may also be understood as the forgetful person, depending on the situation.

Here it behaves like a noun phrase head, meaning the forgetful person / forgetful one.

But Indonesian words are often flexible, so pelupa can feel adjective-like in meaning because it describes a trait.

For a learner, the easiest way to understand it is:

• in meaning: forgetful
• in this sentence: a forgetful person

So it is best translated here as a noun expression, not just as the adjective forgetful by itself.

Usually, yes, but it can appear in a few common patterns.

In this sentence:

• lupa minum kapsul dan suplemen = forgot to take capsules and supplements

A very common pattern is:

• lupa + verb

Examples:

• Saya lupa makan. = I forgot to eat.
• Dia lupa datang. = He/She forgot to come.

It can also be used in other ways, such as:

• Saya lupa namanya. = I forgot his/her name.

So lupa is very common and flexible.

Yes, minum literally means to drink. But in Indonesian, it is also the normal verb used for taking medicine, especially medicine that is swallowed.

So:

• minum air = drink water
• minum obat = take medicine
• minum kapsul = take capsules

This is completely natural in Indonesian. Even though English uses take for medicine, Indonesian often uses minum.

Not really. In Indonesian, using minum for medicine, vitamins, capsules, tablets, and supplements is very common.

So phrases like these are natural:

• minum kapsul
• minum vitamin
• minum suplemen
• minum obat

Even if the item is swallowed rather than literally drunk, minum is still the usual choice.

Indonesian nouns usually do not change form for singular vs. plural.

So:

• kapsul can mean capsule or capsules
• suplemen can mean supplement or supplements

The context tells you which is meant.

In this sentence, English would most naturally translate them as capsules and supplements, but Indonesian itself does not have to mark the plural.

The sentence breaks down like this:

• Pelupa itu = subject
• lupa = main verb
• minum kapsul dan suplemen = complement, explaining what was forgotten

So the overall structure is:

Subject + forgot + action

More literally:

That forgetful person forgot to take capsules and supplements.

A useful thing to notice is that Indonesian often does not need a separate word for to before a verb in this kind of structure.

So:

• lupa minum = forgot to drink / forgot to take

Yes, in translation there is.

Indonesian says:

• lupa minum

English usually says:

• forgot to drink
• forgot to take

Indonesian does not need a separate word equivalent to English to here. The second verb simply follows the first one.

This is very common:

• mau pergi = want to go
• bisa datang = can come / be able to come
• lupa minum = forget to drink/take

Yes, it could mean either, depending on context.

Itu literally often corresponds to that, but in real Indonesian it can also make a noun feel definite, so it may be translated as the when that sounds more natural in English.

So:

• Pelupa itu = that forgetful person
• or the forgetful person

If the speaker is pointing someone out or contrasting them with others, that forgetful person fits better.
If the person is already known in the conversation, the forgetful person may sound more natural in English.

Yes. Orang pelupa itu means that forgetful person too, but it is a little more explicit because it includes orang = person.

Compare:

• pelupa itu = that forgetful one / that forgetful person
• orang pelupa itu = that forgetful person

Both are understandable and natural. The version without orang is more compact.

Yes, it is natural and understandable.

It also has a slightly neat or playful effect because of the repetition:

• pelupa
• lupa

That is similar to English saying something like The forgetful person forgot...

So it is grammatically normal, and the repetition helps emphasize the idea that the person is forgetful.