What type of poem did frost write using iambic penameter?

Robert Frost primarily wrote sonnets and blank verse poetry using iambic pentameter.

Here's a breakdown:

* Sonnets: These are 14-line poems with a specific rhyme scheme, and many of Frost's sonnets follow the traditional Shakespearean sonnet form (ABAB CDCD EFEF GG). While sonnets can use other meters, iambic pentameter is the most common.

* Blank Verse: This is unrhymed iambic pentameter. It's often used for long, narrative poems or dramatic works, and Frost employed it extensively.

It's important to note that while Frost was known for his masterful use of iambic pentameter, he didn't shy away from using other meters and rhyme schemes when appropriate. However, iambic pentameter is the most prominent and recognizable feature of his poetry.