Answer:
<u>1. Open form - These poems have a relatively loose structure when it comes to length, meter, rhyme, or syntax.</u>
<u>2. Blank verse - These poems are written in iambic pentameter, a meter commonly used in poetry and verse drama.</u>
<u>3. Free verse - These poems do not follow any rules. Authors use various elements to communicate their intended meaning.</u>
<u>4. Closed form - These poems follow specific patterns in terms of rhyme, meter, and length. </u>
Explanation:
A poem that presents an open form <u>does not observe the rules strictly</u>. It may present some metric, it may establish some rhythm, but nothing to the point of having a fixed pattern throughout the whole work.
Free verse is a type of poem that<u> does not follow any rules for meter or rhyme schemes </u>at all. NOTE: You will find books and sites that use "free verse" and "open form" as synonyms.
Blank verse happens when<u> the lines do not rhyme</u>, but they do<u> present a regular metric pattern</u> - usually, iambic pentameter.
Finally, a poem that has closed form presents a <u>fixed, rigid pattern for rhythm, rhyme, and metrics</u> from beginning to ending.