Grammar · Sentences & clauses · B1 · Intermediate

Sentence fragments

Last updated 21 July 2026

In short

A sentence fragment is an incomplete sentence punctuated as though it were complete — it lacks a subject, a finite verb, or an independent clause. Typical fragments are stranded subordinate clauses ('Because it was late.') and -ing phrases. Fix a fragment by attaching it to a main clause or supplying the missing part.

Common fragment types and their fixes

Form	Structure	Example
Subordinate-clause fragment	attach it to a main clause	Flights were grounded because the fog refused to lift.
-ing fragment	add a subject and a finite auxiliary	The volunteers were sorting donations all afternoon.
Missing-verb fragment	give the noun phrase a verb	The noise from the construction site keeps everyone awake.
Which-fragment	swap which for this, or attach with a comma	This is why the café extended its opening hours.
Example fragment	keep such as / for example inside the sentence	The city needs green spaces, for example pocket parks and rooftop gardens.

What makes a sentence complete?

A complete sentence needs three things: a subject, a finite verb, and independence — the ability to stand alone. A finite verb is one that carries tense: rose or rises, not rising or to rise. If any of the three is missing, the string of words is a fragment no matter how long it is.

Imperatives are the legal exception: 'Submit the form by Friday.' is complete because the subject you is understood. Everything else must show its subject and its tensed verb on the surface.

Prices rose.(two words, but complete — subject + finite verb)
Running through the terminal with two suitcases.(no subject, no finite verb)
Submit the form by Friday.(imperative — the subject you is implied)

Why is 'Because I was tired.' a fragment?

A subordinator like because, although, when, or while is a promise: a main clause is coming. Put a full stop after the subordinate clause alone and the promise is broken — the reader has the reason but not the statement it belongs to.

This fragment usually appears when writers answer their own rhetorical question, or split a long sentence in the wrong place while editing. The fix is either to attach the clause to its neighbour or to delete the subordinator. Note that in conversation, fragments like this are perfectly normal answers — the double standard between speech and formal writing is real, and the writing standard is the one IELTS marks.

We postponed the launch. Because the payment system kept crashing.(attach it → We postponed the launch because the payment system kept crashing.)
Although the panel praised her design.(an although-clause left hanging — the main clause never arrives)
Although the panel praised her design, the client chose a cheaper option.(promise kept — main clause supplied)

What are -ing fragments and missing-verb fragments?

An -ing form on its own is not finite — it carries no tense — so a clause built on one cannot stand alone. Equally common is the bare noun-phrase fragment: a subject with no verb at all, often produced when listing examples ('For example, the pollution in big cities.').

Both types have the same two repairs: attach the fragment to the sentence next door with a comma, or make it self-sufficient by adding a subject and a finite verb (usually a form of be). Watch especially for fragments beginning with for example, for instance, and such as — detached examples are the most frequent fragment in IELTS essays.

Thousands of fans queuing outside the stadium since dawn.(queuing is not finite → Thousands of fans had been queuing outside the stadium since dawn.)
For instance, the sharp rise in delivery apps.(no verb → For instance, delivery apps have risen sharply.)
Exhausted but delighted, the team lifted the trophy.(the fragment-like opener is attached to a full main clause)

How do you find fragments in your own writing?

Three checks catch nearly everything. First, read your essay backwards, last sentence first: isolation breaks the flow that hides fragments, because a fragment only sounds right when it leans on the sentence before it. Second, look at the first word — if it is a subordinator, which, or such as, confirm a main clause follows. Third, underline the finite verb; no tensed verb means no sentence.

The backwards pass is the professional proofreader's trick, and it costs about ninety seconds for a Task 2 essay. Fragments cluster at paragraph ends, where writers bolt on examples and afterthoughts.

Which is why many families are leaving the city centre.(a which-clause cannot stand alone → This is why many families are leaving the city centre.)
The reason being that ticket prices tripled.(being is not finite → The reason is that ticket prices tripled.)

Are fragments ever acceptable in IELTS?

In the speaking test, yes — fragments are how humans talk. Answering 'What's your favourite season?' with 'Probably winter, because of the food' is natural, fluent English, and examiners assess speech against spoken norms, not essay grammar.

In the writing test, no. Task 1 and Task 2 demand formal prose, where every sentence must stand complete; each fragment counts against 'grammatical accuracy' and a pattern of them undermines the Band 6 requirement that errors 'rarely reduce communication'. Advertising, headlines, and fiction use fragments deliberately — but the exam essay is not the genre for them, and candidates who write the way they text import fragments without noticing.

Definitely the metro, because parking is impossible.(a natural spoken answer — fine in the speaking test)
Overcrowding. Pollution. Endless noise.(punchy in journalism, but out of register in a Task 2 essay)

Common mistakes with sentence fragments

Real learner errors, corrected and explained — the fastest way to stop repeating them.

Many families are downsizing. Because mortgage rates doubled.

Many families are downsizing because mortgage rates doubled.

A because-clause cannot stand as its own sentence — attach it to the main clause it explains.

For example, the traffic on Airport Road.

For example, the traffic on Airport Road is at a standstill by 7 a.m.

A noun phrase with no verb is a fragment — give the example its own finite verb or attach it to the previous sentence.

Hoping to qualify for the national team.

She trains twice a day, hoping to qualify for the national team.

An -ing phrase has no tense and no subject — it must lean on a main clause.

Which explains the sudden fall in applications.

This explains the sudden fall in applications.

Which introduces a relative clause and cannot open a standalone sentence — swap it for This, or join the clause to the previous sentence with a comma.

The reason being that the venue flooded.

The reason is that the venue flooded.

Being is a non-finite form — the sentence needs a tensed verb such as is or was.

Such as badminton, chess and table tennis.

Schools should offer indoor games, such as badminton, chess and table tennis.

A such-as list belongs inside the sentence it illustrates — detached, it has neither subject nor verb.

Sentence fragments in IELTS

Grammatical Range and Accuracy is 25% of your Speaking and Writing scores — here is where this structure earns marks.

Speaking

Relax about fragments in Part 1 — short natural answers ('Mostly at weekends.') are how fluent speakers respond, and forcing every reply into a full written-style sentence sounds stilted. Spoken norms are the yardstick in the speaking room.
In Part 3, though, examiners want developed, complete statements — build answers subject-first ('Governments should…', 'The main reason is that…') so each idea arrives inside a full clause rather than a trailing fragment.

Writing

Proofread Task 2 backwards, sentence by sentence, in the final two minutes. Fragments hide behind the sentence they lean on; read in isolation, 'Which is why costs keep rising.' exposes itself instantly.
Never open an essay sentence with Which, Such as, or For example + noun-only. If you spot one, either bolt it onto the previous sentence with a comma or give it a subject and finite verb — protecting the 'frequent error-free sentences' Band 7 requires.

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Check this rule in your own writing

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Frequently asked questions

What is a sentence fragment with examples?

A fragment is an incomplete sentence punctuated as complete. Examples: “Because the ferry was cancelled.” (a stranded subordinate clause), “Waiting for the results all week.” (an -ing phrase with no subject or tense), and “Such as cheaper housing.” (a detached example with no verb). Each needs a main clause to attach to, or a subject and finite verb of its own.

How do you fix a sentence fragment?

Two repairs cover every case. Either attach the fragment to a neighbouring sentence — usually with a comma or by deleting the full stop — or make it self-sufficient by adding whatever is missing: a subject, a finite verb, or a main clause. “Because fees rose.” becomes “Applications fell because fees rose”, or simply “Fees rose.” after dropping the subordinator.

Is 'Because I said so.' a complete sentence?

Not in formal writing — because subordinates the clause, so it cannot stand alone and would be marked as a fragment in an IELTS essay. In conversation, it is a perfectly normal answer to a why-question, because speech allows fragments freely. The rule to remember: spoken English tolerates stranded because-clauses; written English requires them to be attached to a main clause.

Are sentence fragments ever acceptable in writing?

Yes — in the right genre. Journalism, advertising, and fiction use fragments deliberately for punch and rhythm. Formal genres do not: academic essays, reports, and IELTS Writing Tasks 1 and 2 expect every sentence to be complete, and each fragment counts as a grammatical error. Match the register: expressive genres permit fragments; assessed formal prose never does.

How do I check for fragments quickly in an exam?

Use the backwards pass: read your essay from the last sentence to the first, so each sentence stands alone without support from its neighbour. For every sentence, confirm a subject and a tensed verb, and treat any opener like Because, Which, Although, or Such as as a red flag demanding a main clause. Ninety seconds of this catches virtually every fragment.

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