Read aloud a poem that uses iambic verse to get the feel of how the rhythm flows.
Think about the theme of your poem and write down some ideas. Decide which meter you will use by determining how syllables you want per line.
Decide if you want to write a rhyming verse. For a traditional sonnet of iambic pentameter, such as those of William Shakespeare, use the rhyming pattern ABAB CDCD EFEF GG. Each letter represents the last word of the line, which rhymes with its counterpart. For other meters, you can use a different rhyming pattern.
Ensure that each line follows the iambic form by reading your poem out loud, or marking the stress above the words.