Saya teruja dengan perjalanan itu.

Malay usually does not need a verb like am / is / are before an adjective. So Saya teruja literally looks like I excited, but the natural English meaning is I am excited.

This is very normal in Malay:

• Saya penat = I am tired
• Dia gembira = He/She is happy
• Kami sibuk = We are busy

Teruja means excited, thrilled, or really enthusiastic about something. It describes a strong positive emotional reaction.

Depending on context, it can feel a bit stronger than just interested. In this sentence, it suggests the speaker feels emotionally excited about the trip or journey.

Dengan often means with, but after words of feeling, it can introduce the thing that causes the feeling.

So:

• teruja dengan perjalanan itu = excited about / excited by that journey

This is a common pattern in Malay:

• gembira dengan berita itu = happy about that news
• kecewa dengan keputusan itu = disappointed with that decision

So here, dengan links the emotion to its cause.

Perjalanan is a noun meaning journey, trip, or travel.

It comes from jalan, which is related to road, walk, or go along. With the affixes per-...-an, it becomes a noun referring to the journey or travelling process.

So perjalanan is not a verb like to go. It is the thing itself: the journey/trip.

In Malay, demonstratives like this and that usually come after the noun, not before it.

So:

• perjalanan itu = that journey
• rumah itu = that house
• buku ini = this book

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

It can be either, depending on context.

Perjalanan is fairly flexible and can mean:

• journey when the travel itself is emphasized
• trip in more everyday situations
• sometimes even travel in a broader sense

So the best English choice depends on what kind of event the speaker is talking about.

Yes, it is completely natural.

The structure is:

• Saya = I
• teruja = excited
• dengan perjalanan itu = about/with that journey

So the pattern is basically:

Subject + adjective/state + prepositional phrase

That is a very normal Malay sentence pattern.

You might be understood, but dengan is more natural here.

Tentang usually means about / concerning in the sense of a topic:

• Kami bercakap tentang filem itu = We talked about that film

But with feelings like teruja, dengan is the more idiomatic choice:

• teruja dengan
• gembira dengan
• kecewa dengan

So Saya teruja dengan perjalanan itu is the better sentence.

Yes, but the tone changes.

• Saya is neutral, polite, and safe in most situations.
• Aku is more informal and personal.

So:

• Saya teruja dengan perjalanan itu = polite/neutral
• Aku teruja dengan perjalanan itu = casual, used with close friends or in informal speech

For learners, saya is usually the safer choice.

Sometimes, yes, especially in conversation if the subject is already clear from context.

For example, if someone asks how you feel, you might just say:

• Teruja dengan perjalanan itu

But as a full standalone sentence, Saya teruja dengan perjalanan itu sounds more complete and standard.

You would usually put tidak or casual tak before teruja:

• Saya tidak teruja dengan perjalanan itu = I am not excited about that journey
• Saya tak teruja dengan perjalanan itu = same meaning, but more conversational

With adjectives and states, tidak / tak is the normal negator.