This suffix -lah is often used to give emphasis, to soften a command or to add politeness to an expression. It is added to verb in imperative sentence.
It imply an implicit ‘please’ or ‘begging’, differ with the word without Indonesian Suffix -lah. Therefore, it becomes more polite to ask someone to do a favor when you used suffix ‘-lah’.
Example:
- Buanglah sampah pada tempatnya.
- Please throw garbage in its place.
- Rajinlah membaca buku.
- Please read the book diligently.