Adalah (to be) in Indonesian

Overview

One of the most liberating aspects of Indonesian for English speakers is that there is often no need for a "to be" verb. Where English requires "is," "am," or "are," Indonesian frequently uses nothing at all. The word adalah exists as a formal equivalent of "to be," but it is mainly used in definitions and formal writing.

For everyday sentences with adjectives, you simply place the adjective after the subject: Dia cantik means "She is beautiful" with no verb in between. For identifying sentences ("This is a book"), you use the demonstratives ini (this) or itu (that) without adalah. Understanding when to use adalah and when to leave it out is one of the first steps to sounding natural in Indonesian.

How It Works

When to Omit "to be"

Pattern	Indonesian	English
Subject + Adjective	Dia cantik.	She is beautiful.
Subject + Noun (informal)	Saya guru.	I am a teacher.
Ini/Itu + Noun	Ini buku.	This is a book.
Subject + Location	Dia di rumah.	He is at home.

When to Use Adalah

Pattern	Indonesian	English
Formal definition	Indonesia adalah negara kepulauan.	Indonesia is an archipelago nation.
Emphasis/clarity	Dia adalah orang yang tepat.	He is the right person.
Written/academic	Pendidikan adalah kunci sukses.	Education is the key to success.

Key Points

• Adalah is optional in most conversational contexts
• Adalah is never used before adjectives
• Adalah is used in formal definitions and written style
• Ini/itu already function as linking words — no adalah needed

Examples in Context

Indonesian	English	Note
Saya (adalah) guru.	I am a teacher.	Adalah is optional here
Ini buku.	This is a book.	No copula needed
Dia cantik.	She is beautiful.	Never use adalah before adjectives
Hari ini panas.	Today is hot.	Adjective predicate
Indonesia adalah negara besar.	Indonesia is a large country.	Formal definition
Itu teman saya.	That is my friend.	Ini/itu as linker
Saya orang Indonesia.	I am Indonesian.	Conversational — no adalah
Air adalah sumber kehidupan.	Water is the source of life.	Formal/written style
Cuaca bagus hari ini.	The weather is nice today.	No copula
Dia dokter.	He/She is a doctor.	Simple identification

Common Mistakes

Using adalah before adjectives

• Wrong: Dia adalah cantik.
• Right: Dia cantik.
• Why: Adalah is only used between two noun phrases, never before an adjective.

Inserting adalah in every sentence

• Wrong: Ini adalah buku saya.
• Right: Ini buku saya. (conversational) or Ini adalah buku saya. (formal)
• Why: In everyday speech, adalah sounds overly stiff. Reserve it for formal contexts.

Translating English "is" literally

• Wrong: Looking for a verb in Hari ini panas
• Right: Accept that no verb is needed — the adjective serves as the predicate
• Why: Indonesian predicative adjectives function like verbs; no copula is required.

Practice Tips

1. Practice building simple sentences without any "to be" verb: Subject + Adjective or Ini/Itu + Noun. This will help you break the English habit of always including "is."
2. Read Indonesian news headlines to see how adalah is used in formal definitions. Notice that it almost always connects two noun phrases.

Related Concepts

• Personal Pronouns — subjects that combine with adalah or adjectives
• Defining and Explaining — advanced definition structures using adalah and yaitu