Tumit saya sakit karena sepatu itu terlalu keras untuk dipakai berjalan jauh.

In Indonesian, possession usually works as:

noun + possessor

So:

• tumit saya = my heel
• sepatu saya = my shoes
• rumah saya = my house

This is different from English, where the possessor usually comes first.

Tumit means heel, specifically the heel of the foot.

So Tumit saya sakit means My heel hurts or My heel is sore.

Sakit often means sick or ill, but it can also mean painful, hurting, or sore depending on context.

In this sentence:

• Tumit saya sakit = My heel hurts / My heel is sore

So sakit is not only for illness. It is also very commonly used for body pain.

For example:

• Kepala saya sakit. = My head hurts.
• Gigi saya sakit. = My tooth hurts.

Indonesian often does not use a verb like to be in simple sentences.

So:

• Tumit saya sakit literally looks like my heel sore
• but it naturally means My heel is sore / My heel hurts

This is very normal in Indonesian. The linking verb is often simply understood from context.

Karena means because.

It introduces the reason:

• Tumit saya sakit karena sepatu itu...
• My heel hurts because those shoes...

Like English because, it connects the main statement with the cause.

You can also place the reason first in Indonesian:

• Karena sepatu itu terlalu keras, tumit saya sakit.

That means the same thing, just with a different emphasis.

In Indonesian, demonstratives such as ini and itu usually come after the noun:

• sepatu itu = those shoes / the shoes
• buku ini = this book
• rumah itu = that house

So sepatu itu is the normal word order.

Depending on context, itu can mean:

• that / those
• or sometimes the, if the thing is already known in the conversation

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

So sepatu can mean:

• shoe
• shoes

The context tells you which one is meant.

If you really want to emphasize plurality, Indonesian can use reduplication:

• sepatu-sepatu

But in normal speech, that is often unnecessary. Here, people naturally understand sepatu itu as those shoes or the shoes.

Terlalu means too, and keras usually means hard, firm, or stiff.

So terlalu keras here means something like:

• too hard
• too stiff

When talking about shoes, keras refers to the material being hard or rigid, not comfortable against the foot.

So the idea is that the shoes are too stiff for long-distance walking.

Yes. Keras has several related meanings, including:

• hard / firm / stiff
• strong / harsh
• loud (for sound)

The meaning depends on context.

With sepatu, keras clearly means hard/stiff, not loud.

For example:

• suara keras = a loud voice/sound
• roti keras = hard bread
• sepatu keras = stiff shoes

This is a very common question.

• memakai = to wear / to use
• dipakai = to be worn / to be used

In this sentence, the focus is on the shoes, not on who wears them. So Indonesian naturally uses the passive form:

• sepatu itu terlalu keras untuk dipakai...
• literally: those shoes are too stiff to be worn...

This sounds natural because the shoes are the thing being described.

If you said untuk memakai, it would shift the meaning toward for someone to wear/use, and it would sound less natural here unless you added a subject.

So untuk dipakai is the better choice in this sentence.

Here untuk means for or to, expressing suitability or purpose.

So:

• terlalu keras untuk dipakai berjalan jauh
• too stiff to be worn for walking long distances

It tells us what activity the shoes are unsuitable for.

You will often see this pattern:

• terlalu + adjective + untuk + verb

For example:

• terlalu panas untuk disentuh = too hot to touch
• terlalu berat untuk dibawa = too heavy to carry

Literally:

• berjalan = to walk
• jauh = far

So berjalan jauh means to walk far, or more natural English, to walk long distances.

In this sentence, it describes the kind of use being talked about: wearing the shoes for long-distance walking.

Because jauh refers to distance, while lama refers to time.

So:

• berjalan jauh = walk far / walk a long distance
• berjalan lama = walk for a long time

Both are possible, but they mean different things.

In your sentence, the issue is long-distance walking, so jauh is the right word.

Not exactly a fixed expression, but it is a natural combination.

It means something like:

• used/worn for walking long distances

Here, dipakai connects the shoes with their use, and berjalan jauh explains that use.

A slightly more conversational version might be:

• untuk dipakai jalan jauh

In everyday speech, jalan jauh is often used instead of the more formal berjalan jauh.

It is natural and grammatical, but it leans slightly toward a careful or written style because of dipakai and berjalan.

A more casual spoken version might be:

• Tumit saya sakit karena sepatu itu terlalu keras untuk dipakai jalan jauh.

This means the same thing, but sounds a bit more everyday.

So the original sentence is good; it is just a little more polished than very casual conversation.

Yes. A few natural alternatives are:

• Tumit saya terasa sakit. = My heel feels sore.
• Tumit saya nyeri. = My heel aches.
• Tumit saya sakit sekali. = My heel really hurts.

The original Tumit saya sakit is simple, common, and completely natural.