A sonnet is a 14-line poem, traditionally written in iambic pentameter, that focuses on a single idea, argument, or emotion — often love. The form has two main types: the Petrarchan sonnet and the Shakespearean sonnet. Each has a distinct rhyme scheme and structure that shapes how the poem builds and resolves its central idea.
Where does the sonnet come from?
The sonnet originated in thirteenth-century Italy, most likely in the court of Holy Roman Emperor Frederick II, and was developed and popularised by the poet Francesco Petrarch (1304–1374). Petrarch wrote 366 sonnets, mostly addressed to a woman called Laura, and established the form's central preoccupation: the exploration of love, desire, and emotional conflict. The word sonetto means "little sound" or "little song" in Italian.
The form arrived in England in the sixteenth century through poets Sir Thomas Wyatt and Henry Howard, Earl of Surrey. Shakespeare adapted it significantly, creating what we now call the Shakespearean or English sonnet.
What are the two main types of sonnet and how do they differ?
| Feature | Petrarchan (Italian) Sonnet | Shakespearean (English) Sonnet |
|---|---|---|
| Lines | 14 | 14 |
| Structure | Octave (8 lines) + Sestet (6 lines) | Three quatrains (4+4+4) + Couplet (2) |
| Rhyme scheme | ABBAABBA / CDECDE (or CDCDCD) | ABAB CDCD EFEF GG |
| Volta position | Between line 8 and line 9 | At line 13 (before the final couplet) |
| Effect of structure | Problem raised in octave, resolved in sestet | Idea developed over three quatrains; twist or conclusion in couplet |
Both types use iambic pentameter — ten syllables per line, alternating unstressed and stressed beats (da-DUM da-DUM da-DUM da-DUM da-DUM). This gives sonnets their characteristic "heartbeat" rhythm.
What is iambic pentameter and why does it matter?
An iamb is a unit of rhythm consisting of one unstressed syllable followed by one stressed syllable: da-DUM. Pentameter means five of these units per line: five da-DUMs = ten syllables.
Example from Shakespeare's Sonnet 18:
"Shall I com-PARE thee TO a SUM-mer's DAY?"
Reading the poem aloud and noticing where the natural stresses fall helps you identify iambic pentameter. When a poet departs from the regular rhythm — adding an extra syllable, stressing an unexpected word — that is usually where meaning is concentrated.
At KS3, you do not need to scan every line precisely. What matters is being able to say: "This poem is written in iambic pentameter, which gives it a steady, measured rhythm — and when the pattern breaks at line X, the disruption creates emphasis."
What is the rhyme scheme of the Shakespearean sonnet?
The Shakespearean sonnet's rhyme scheme is ABAB CDCD EFEF GG. Here is what that means in practice, using Sonnet 18:
- A: day / A: temperate — end words that rhyme
- B: lovely / B: August — end words that rhyme
- G G: final couplet — two lines that rhyme with each other
The three quatrains introduce and develop the argument; the final couplet (GG) arrives as a conclusion, twist, or resolution. The couplet's rhyme makes it feel decisive and complete — like a door clicking shut. This structural satisfaction is part of what makes the Shakespearean sonnet so effective as a form for stating conclusions.
How do I analyse a sonnet?
When you approach a sonnet in an exam or assessment, work through these questions in order:
- What type is it? Count the lines (14), then identify the rhyme scheme — is it ABBAABBA / sestet (Petrarchan) or ABAB CDCD EFEF GG (Shakespearean)?
- What is the topic? What idea, emotion, or argument does the poem explore?
- Where is the volta? Where does the poem turn — a shift in mood, tone, or argument? What changes?
- What does the rhyme scheme do? Does the rhyme feel controlled and confident, or are there near-rhymes (slant rhymes) that suggest tension?
- Are there notable departures from iambic pentameter? Where and why?
- What does the final couplet (if Shakespearean) do? Does it resolve the poem, complicate it, or surprise?
Worked example — identifying the volta in Sonnet 130 ("My mistress' eyes are nothing like the sun")
Shakespeare spends twelve lines cataloguing ways in which his beloved does not match conventional poetic ideals — her eyes are not like the sun, her cheeks are not like roses, her breath reeks compared to perfume. The volta arrives at line 13: "And yet, by heaven, I think my love as rare / As any she belied with false compare." The phrase "And yet" is the signal. Everything before it demolishes the Petrarchan convention of hyperbolic praise; the couplet restores genuine feeling by insisting that real love surpasses idealised fiction. The volta transforms what seemed like criticism into a radical defence of authenticity.
What topics do sonnets typically explore?
While love is the dominant subject, sonnets explore a wide range of themes:
- Love and desire — the most traditional subject (Petrarch, Shakespeare, Philip Sidney)
- The passage of time and mortality — Shakespeare's Sonnet 73 ("That time of year thou mayst in me behold")
- Art and immortality — the claim that poetry outlasts death (Sonnet 18)
- Political and social themes — in modern sonnets, the form has been adapted for war, race, identity, and injustice (e.g. Seamus Heaney, Carol Ann Duffy, Claude McKay)
- Nature — especially in the Romantic tradition
The sonnet's tight form makes it particularly powerful for exploring contradiction and tension — which is why love (with all its ambivalence) is such a natural subject.
Frequently asked questions
Do all sonnets rhyme?
The traditional sonnet rhymes, but modern poets have written "unrhymed sonnets" that follow the 14-line structure and volta convention without strict rhyme schemes. These are called free verse sonnets or near-sonnets. The 14-line structure and the idea of a volta are the most durable features of the form.
How long should my sonnet analysis be?
For a KS3 or GCSE response, a full analysis might be 300–500 words, covering: the poem's type and structure, its subject, the volta, two or three key language devices, and the overall effect on the reader. Quality of analysis matters far more than length.
Is the Shakespearean sonnet better than the Petrarchan?
Neither is objectively better — they are different tools for different purposes. The Petrarchan form's octave-sestet split suits poems that want to establish a problem and then offer a response or resolution. The Shakespearean form's three-quatrain progression suits poems that want to build an argument through stages and then snap it shut with a decisive couplet. Many poets have used both in their careers.
Why did Shakespeare write 154 sonnets?
Scholars have debated this for centuries. Shakespeare's sonnets (published 1609) are dedicated to a mysterious "Mr W.H." and address two main figures: a beautiful young man and a "dark lady." They are not simply love poems — they are a complex sequence exploring time, desire, jealousy, infidelity, and the power of poetry. Whether they are autobiographical is unknown.
Professor Quill at aitutors.me is happy to work through any sonnet with you — ask him to walk you from line to line.