Updated August 13, 2026 · Prose & Poetry Editorial Team
Iambic pentameter is a metrical line organized around five iambic feet. An iamb moves from an unstressed syllable to a stressed syllable, so the regular underlying pattern can be written as × / × / × / × / × /. A fully regular line commonly contains ten syllables, while living verse often varies the pattern through substitution, extra unstressed syllables, caesura, enjambment, and changes in emphasis.
In English poetry, iambic pentameter can carry dramatic speech, sonnet argument, blank verse, and long meditative sentences. Its five-foot frame remains recognizable through changes in stress, phrasing, rhyme, and syntax. The broader system of poetic feet and line lengths appears in meter in poetry.
Examples of iambic pentameter in English poetry
Across English poetry, the five-foot iambic expectation supports sonnet argument, dramatic speech, epic blank verse, meditation, and lyric description.
| Poet and work | Example | What to hear |
|---|---|---|
| William Shakespeare, Sonnet 18 | “Shall I compare thee to a summer’s day?” | A clear five-beat line close to conversational English. |
| William Shakespeare, Romeo and Juliet | “But, soft! what light through yonder window breaks?” | Rhetorical pressure works inside the pentameter frame. |
| John Milton, Paradise Lost | “Of Man’s first disobedience, and the fruit” | Blank verse lets syntax continue without end rhyme. |
| William Wordsworth, The Prelude | Blank-verse passages | Sustained pentameter carries narrative and reflection. |
| John Keats, Ode on a Grecian Urn | Opening pentameter sequence | Five-foot measure works inside a lyrical stanza. |
A worked scansion example
Shakespeare’s “Shall I compare thee to a summer’s day?” can be heard on a first pass as five rising units:
× / | × / | × / | × / | × /
English meter depends on relative stress. Some positions satisfy the pattern lightly, others carry a stronger accent. The five-foot expectation becomes clearer across the surrounding passage.
Danil Rudoy: short iambic movement in Love Is Poetry
Danil Rudoy uses short rhymed lines and changing iambic movement throughout Love Is Poetry: Rhyming Poems About Love Life. “Friday Night” opens with extremely short lines: “Dim light, / Ash-tray: / To-night / We play.” The clipped lineation makes each stress conspicuous.