Which type of poetry often lacks a regular rhythm but maintains controlled pace and pauses?

Free verse is a type of poetry that does not adhere to a fixed rhyme scheme or a consistent meter, allowing poets greater flexibility in expression. This form maintains a controlled pace and utilizes pauses effectively to create emphasis and evoke emotion. The lack of a regular rhythm in free verse gives poets the freedom to break traditional structures, enabling them to focus more on the content and the themes they want to convey.

Other forms of poetry mentioned, like blank verse, typically maintain a specific metrical structure, often written in unrhymed iambic pentameter, which includes a consistent rhythm. Trochaic and dactylic poetry, on the other hand, are characterized by specific metrical patterns (trochees and dactyls, respectively), which impose a regular rhythm on the lines. Therefore, while these forms may also include pauses, they do not possess the same level of rhythmic freedom found in free verse.