Curierul ajunge curând.

Because -ul is the definite article in Romanian for a masculine singular noun.

• curier = courier / a courier
• curierul = the courier

Unlike English, Romanian usually adds the definite article to the end of the noun instead of putting a separate word like the in front of it.

So:

• curierul ajunge curând = the courier arrives soon

Ajunge is in the present tense, 3rd person singular, from the verb a ajunge.

In this sentence, it literally means arrives or gets here / gets there, depending on context.

Romanian present tense can sometimes refer to a near future event, just like English can in sentences such as The courier arrives soon. So depending on context, this could feel like:

• The courier arrives soon
• The courier will arrive soon

Not always. A ajunge is a very common Romanian verb with a few related meanings, including:

• to arrive
• to reach
• to get to
• sometimes to end up becoming

In this sentence, the natural meaning is to arrive.

Examples:

• Ajung acasă la 6. = I get home at 6.
• Ajungem repede. = We arrive quickly.
• A ajuns doctor. = He became a doctor.

So here, the context makes arrive the best translation.

Curând means soon.

It is an adverb, so it modifies the verb ajunge and tells you when the courier arrives.

So:

• ajunge curând = arrives soon

A very common related expression is în curând, which also means soon.

In many situations:

• Curierul ajunge curând.
• Curierul ajunge în curând.

both sound natural, though în curând can feel slightly more explicitly like before long / shortly.

Both usually mean soon, but there is a small nuance.

• curând = soon
• în curând = soon / shortly / before long

In everyday Romanian, both are very common and often interchangeable.

Examples:

• Vin curând. = I’m coming soon.
• Vin în curând. = I’m coming soon / I’ll be there shortly.

In your sentence, curând is perfectly correct and natural.

A rough English-friendly pronunciation is:

koo-ree-EH-rul ah-ZHOON-jeh koo-RUHND

A few notes:

• c in curierul is a hard k sound.
• j in ajunge sounds like the s in measure.
• ge in ajunge sounds like jeh.
• â in curând is a special Romanian vowel, pronounced deep and central, somewhat like a reduced vowel but not exactly like anything in standard English.

If you want a more accurate breakdown:

• Curierul = cu-ri-e-rul
• ajunge = a-jun-ge
• curând = cu-rând

Stress is usually:

• curiErul
• aJUNge
• cuRÂND

In curierul, -ul tells us that the noun is:

• masculine
• singular
• definite

And in this sentence it is also the subject of the verb.

So grammatically, curierul is the courier as the one performing the action.

This is a very common Romanian pattern:

• băiat = boy

• băiatul = the boy

• profesor = teacher
• profesorul = the teacher

Because Romanian normally uses a postposed definite article, meaning the article is attached to the end of the noun.

Compare:

• English: the courier
• Romanian: curierul

This is one of the big differences between Romanian and English.

Other examples:

• om = man / person

• omul = the man / the person

• copil = child
• copilul = the child

So curierul is completely normal Romanian structure.

Yes, but the basic order here is the most neutral one:

• Curierul ajunge curând.

This is a standard subject + verb + adverb order.

You may also hear:

• Curând ajunge curierul.
• Ajunge curând curierul.

These are possible, but they change the emphasis a bit. For a learner, the original version is the safest and most natural neutral sentence.

Yes, in many contexts it can.

Romanian does not have a direct one-to-one equivalent of the English present continuous in this sentence. The simple present ajunge can cover meanings that English might express as:

• arrives soon
• is arriving soon
• sometimes even will arrive soon

The exact best translation depends on context.

Curier is a normal Romanian word meaning courier. It is related to similar words in other European languages and is not unusual or foreign-sounding in Romanian.

Romanian has many words that resemble English, French, or other Romance-language vocabulary, and curier is one of the easier ones for English speakers to recognize.

No. Romanian does not need a separate subject pronoun in this sentence.

The noun curierul already tells us who the subject is: the courier.

Also, Romanian often omits subject pronouns even when the subject is just a pronoun, because the verb ending usually gives enough information.

So this sentence is complete as it is:

• Curierul ajunge curând.

There is no need to add anything like el unless you want special emphasis.

Not always, but that is a very common position.

In this sentence:

• ajunge curând

the adverb comes after the verb, which is very natural.

Romanian adverbs are somewhat flexible in position, but not every position sounds equally neutral. For learners, putting curând after the verb is a good default choice.

So:

• Curierul ajunge curând. = very natural

Other orders may be possible, but this one is the best basic model to learn first.