How can you tell the act one is written in blank verse Julius Caesar?

The first act of Julius Caesar is not written in blank verse. Blank verse is a form of poetry that consists of unrhymed lines of iambic pentameter, which means each line has ten syllables, with the stressed syllables falling on the first, third, fifth, seventh, and ninth syllables. The first act of Julius Caesar is written in prose, which is more typical of a play.