Learn Indonesian with Ossi

04/08/2026

Subscribe to our channel on YouTube for free lessons. 🙂

Why Indonesian Sounds NOTHING Like You Think | Master C, the Glotta...

30/06/2026

How to Correctly Use (or Not Use) the Indonesian 'Me-'

Want a fast trick to immediately sound more natural in Indonesian? Learn the me- rule. Then learn when to break it.

When you start learning Indonesian, everyone tells you the grammar is easy. And it is! But the trickiest part is learning when NOT to use the rules you just memorized. This is especially true for the prefix me-.

Officially, this prefix attaches to verbs (like memakan, membaca, membeli). But if you use it in every conversation, you might sound like you are reading a formal address. Natives often drop me- entirely to save time.

It’s about register and relationship. Use me- when talking to your boss, writing an email, or giving a presentation. Drop me- when chatting with a friend, buying food at a stall, or asking for simple directions.

Me- is present: Saya s**a membaca buku. (I like reading books.)
Me- is dropped: Aku s**a baca komik. (I like reading comics.)

It's about choosing the right gear for your speed!

Learn Indonesian culture and language the smart way. Follow this page for regular tips.

29/06/2026

Stop sounding like a tourist in the boardroom.

The gap between street slang and formal Indonesian is massive. If you are navigating the Indonesian business landscape, mastering the complex system of prefixes and suffixes is the only way to bridge that gap and establish your professional credibility.

Today, we are officially launching our new learning platform dedicated entirely to advanced Indonesian fluency. We removed the guesswork and built a structured path to absolute institutional-level proficiency.

Our website is now live, featuring two comprehensive programs:

1. Indonesian Affixation for Professional and Institutional Use.
Master the mechanics of formal Indonesian word building to confidently read contracts, draft official emails, and understand complex government documents.

2. Indonesian Colloquial to Professional Conversion Fluency.
Learn how to effortlessly translate everyday spoken Indonesian into polished, highly professional speech suitable for corporate environments.

What you receive upon enrollment:

-Fully prerecorded video lessons

-A structured curriculum you can complete at your own pace

-Lifetime access to all course materials

-Downloadable study guides and resources

-Interactive comment sections for direct evaluations and feedback

-An official certificate of completion for your resume

Do not let the language barrier dictate your career progression in Indonesia. Visit our website today to view the full syllabi and secure your lifetime access. https://www.learnindonesianwithossi.com/courses

29/06/2026

Most people learning Indonesian focus on vocabulary. That’s why they sound correct but slightly “off” in real conversations.

The missing piece is affixation.

I saw this clearly when a foreign consultant in Jakarta explained his work using only base verbs. Everything was understandable, but it sounded like commands rather than collaboration. Locals responded politely, but the tone never fully connected.

Indonesian uses affixes like me-, di-, and -kan to shape tone, precision, and responsibility in speech.

“Tulis laporan itu” means “Write the report,” direct and informal.

“Menulis laporan itu” becomes “Writing the report,” more neutral and descriptive.

“Saya menuliskan laporan itu” means “I am preparing the report,” with -kan adding completeness and intent.

“Laporan itu ditulis oleh tim kami” means “The report was written by our team,” shifting focus to the result.

“Bisa kirim laporan ini?” means “Can you send this report?” casual and efficient.

The important insight is this: affixes change perspective, not just grammar. They control how your message is received.

Once learners understand this, they stop translating word by word and start hearing intention in real time.

That’s the foundation behind Learn Indonesian with Ossi, where structure and tone are trained together through real usage patterns.

Follow Learn Indonesian with Ossi
Click the link to access a free learning resource https://www.learnindonesianwithossi.com/affixlead

04/06/2026

Quick win: spot market-moving phrasing in Indonesian news in 10 seconds. Here’s how. ⚡

Rule of thumb: prefix meN- indicates an action by an agent; ter- often shows a state or event. Traders can tell whether an event happened or a condition exists and act faster.

Examples:
- “memproduksi” (to produce) → action by a company, may indicate supply changes.
- “terbakar” (was burned/in a burned state) → incident confirmed; different signal.

Save this post if you trade the Indonesian/ASEAN markets.
Want a 1-page affix cheat sheet? Comment “Cheat” and I’ll share it.

02/06/2026

We saved a regulator from an ambiguous clause — with 30 minutes of affix training. 🚨

A policy draft used “dapat dikenakan” (may be imposed) vs “harus dikenakan” (must be imposed). That swap changed permissiveness. One session helped reviewers spot and fix it before publication.

Example:
- Modal nuance: “dapat” (may/can) vs “harus” (must). Affix “-kan” often makes verbs transitive, altering obligations.

Want a 30-minute online workshop for your legal team?
Reply with your sector, and I’ll share a tailored agenda.

30/05/2026

Still losing nuance in Indonesian → English translations? One missing affix could cost your client millions. ⚠️

Indonesian affixes change voice, aspect, causation, and sometimes legal responsibility. Small word changes in contracts can flip who’s liable. Learn to spot the dangerous ones and save time (and reputation).

Examples:
- “diperiksa” = was examined (passive) vs “memeriksa” = to examine (active). In contracts, that flips responsibility.
- “menyebabkan” = to cause (causative) vs root “sebab” = cause.

Want a 3-minute checklist translators use to spot dangerous affixes?
Write “Checklist” below, and I’ll DM it.

27/05/2026

You can have a senior role and still sound junior in Indonesian writing.

That happens surprisingly often in professional communication.

Example:

“Saya suruh tim cek ini.”

versus

“Saya telah menugaskan tim untuk memeriksa hal ini.”

The second version signals:

• Structure

• Leadership

• Professionalism

• Authority

Language not only transfers information. It also signals competence.

This becomes especially important when communicating with:

• Clients

• Ministries

• Executives

• Institutional stakeholders

Most professionals are never explicitly told when their Indonesian sounds too casual. But people notice.

I created a short professional guide covering 5 common Indonesian writing mistakes foreign professionals make.

Comment “CHECKLIST,” and I’ll send it.

25/05/2026

Many foreign professionals speak Indonesian well. But their emails still sound too casual professionally. That gap matters more than people realize.

For example: “Saya mau kirim dokumen ini” is understandable.

But in many professional contexts:

“Saya akan mengirimkan dokumen tersebut.”

sounds more deliberate, structured, and credible.

Small affixation and wording choices can affect how your communication is perceived in:

• Reports
• Negotiations
• Stakeholder communication
• Institutional interactions

Professional Indonesian is not just about meaning. It is also about tone and authority.

I recently put together a short guide:

“5 Indonesian Writing Mistakes That Damage Professional Credibility”

for foreign professionals working with Indonesian teams, clients, and institutions.

Comment “GUIDE” and I’ll send it.