Saya akan mengantar nenek ke rumah sakit besok pagi.

Akan marks the action as future: will / going to.

So:

• Saya mengantar nenek ... = I take / am taking grandma ...
• Saya akan mengantar nenek ... = I will take grandma ...

In everyday Indonesian, akan is often omitted if a future time expression already makes the meaning clear. Because this sentence already has besok pagi (tomorrow morning), many speakers would also naturally say:

Saya mengantar nenek ke rumah sakit besok pagi.

That still clearly refers to the future.

Mengantar is the active verb form built from the root antar.

• antar = the root
• mengantar = to escort, take, deliver someone somewhere

The meN- prefix often appears in normal active sentences, especially in more standard Indonesian.

So Saya akan mengantar nenek ... is a standard way to say I will take/escort grandma ...

In casual speech, some speakers may say saya akan antar nenek, but mengantar is the safer standard form for learners.

In this sentence, mengantar means something like:

• to take someone somewhere
• to escort someone
• to drop someone off

It is usually used when a person accompanies another person to a destination.

So mengantar nenek ke rumah sakit suggests that the speaker is taking grandma to the hospital, not just carrying something there.

It is different from:

• membawa = to bring/carry
• mengirim = to send
• menemani = to accompany / keep someone company

Indonesian often leaves out possessive words when the meaning is already obvious from context, especially with family terms.

So:

• nenek = grandmother / grandma
• nenek saya = my grandmother

In many situations, nenek by itself is understood as my grandma if the speaker is talking about their own family.

Using nenek saya would sound more explicit, but nenek alone is very natural.

No. Nenek by itself just means grandmother / grandma.

Depending on context, it could mean:

• my grandmother
• someone’s grandmother
• Grandma as a form of address

In this sentence, English naturally translates it as my grandmother or grandma, because that is what makes sense in context.

Ke is a preposition meaning to or toward a place.

So:

• ke rumah sakit = to the hospital

This is the normal way to show movement toward a destination.

Compare:

• di rumah sakit = at the hospital
• ke rumah sakit = to the hospital

A very common learner point is that ke is written separately because it is a preposition here.

Rumah sakit is the normal Indonesian word for hospital.

Literally, the parts are:

• rumah = house
• sakit = sick / illness

But you should learn rumah sakit as one fixed expression meaning hospital.

It works like a set phrase, not as a word-for-word English-style combination.

Indonesian time expressions are quite flexible, and they are often placed at the end of the sentence.

So this sentence structure is very natural:

• Saya akan mengantar nenek ke rumah sakit besok pagi.

But you can also put the time expression at the beginning for emphasis:

• Besok pagi, saya akan mengantar nenek ke rumah sakit.

Both are correct. Putting besok pagi first often feels a bit more like As for tomorrow morning...

Both can refer to tomorrow morning, but besok pagi is the more common and straightforward order for learners.

• besok pagi = tomorrow morning

You may also hear pagi besok in some contexts, but besok pagi is the safest and most standard choice in a sentence like this.

Yes. Very often, yes.

Because besok pagi already tells you the action happens in the future, Indonesian does not always need a separate future marker.

So both of these can work:

• Saya akan mengantar nenek ke rumah sakit besok pagi.
• Saya mengantar nenek ke rumah sakit besok pagi.

The version with akan sounds a little more explicit about the future.

Saya is the neutral, polite, and widely usable word for I.

• saya = polite/neutral I
• aku = more informal I

Using saya makes the sentence sound natural in many situations, including standard spoken and written Indonesian.

If you changed it to aku, the sentence would sound more casual:

Aku akan mengantar nenek ke rumah sakit besok pagi.

That is also correct, but less formal.

Yes, fairly similar.

The sentence follows this pattern:

• Saya = subject
• akan = future marker
• mengantar = verb
• nenek = object
• ke rumah sakit = destination
• besok pagi = time

So it is roughly:

I + will + take + grandma + to the hospital + tomorrow morning

That makes this sentence relatively easy for English speakers to follow.

Yes, in this sentence, lowercase nenek is normal.

It is just being used as a common noun meaning grandmother / grandma.

You might see it capitalized if it is used like a name or direct form of address, for example:

• Nenek, saya datang. = Grandma, I’m here.

But in Saya akan mengantar nenek ..., lowercase is standard.