Rangkuman itu singkat, tetapi isinya pasti jelas.

to be

Breakdown of Rangkuman itu singkat, tetapi isinya pasti jelas.

• itu: that
• tetapi: but
• jelas: clear

Questions & Answers about Rangkuman itu singkat, tetapi isinya pasti jelas.

What does itu add in Rangkuman itu? Could I leave it out?

Itu after a noun makes it specific or demonstrative: rangkuman itu = that summary / the summary (already known to speaker and listener). Without itu, rangkuman is generic or indefinite, like summary/a summary. So leaving it out changes the meaning from specific to general.

Why is there no adalah (is) before singkat or jelas?

In Indonesian, adjectives can directly serve as predicates. So Rangkuman itu singkat and isinya jelas are complete sentences. Adalah is generally used before noun phrases, not adjectives. Saying Rangkuman itu adalah singkat sounds unnatural.

What exactly is isinya? How does -nya work here?

Isinya = isi (content) + -nya. The suffix -nya most commonly marks third-person possession (its/his/her) or definiteness. Here it means its content, with -nya referring back to rangkuman itu. You could also say isi rangkuman itu with the same meaning.

Is isinya the subject or the object in the second clause?

It’s the subject. The clause isinya pasti jelas parses as Subject = isinya, Predicate = pasti jelas.