DUPLE (C2) common mistakes
DUPLE (C2) · Understand the traps and how to avoid them.
Reading a long source text once at normal speed and then answering comprehension items from overall gist, without locating the specific clause that decides each answer.
At C2 the distractors are built from paraphrases that preserve topic but invert stance, scope, or attribution; candidates trust a confident first impression because their general reading is fluent, so they never return to the deciding sentence.
What to do instead
For every item, underline the exact span in the text that licenses the answer and name the word that carries the decisive meaning (a negator, a modal, a quantifier, a concessive). If you cannot point to a span, treat the answer as unverified and re-read the paragraph around the topic sentence.
Treating an inference item as a vocabulary match, choosing the option that reuses words from the passage rather than the one that follows logically from it.
Lexical overlap feels like evidence, and under time pressure the brain rewards familiarity over validity; C2 candidates often over-trust their ability to 'hear' the right answer.
What to do instead
Before looking at the options, write your own one-line inference from the text. Then eliminate any option that merely echoes the passage's wording but adds no logical step, and any option that goes further than the text permits.
Writing an essay or report that answers the task accurately but never states a clear position, or states it only in the final sentence.
Candidates focus their planning on content knowledge and vocabulary display, treating structure as something that emerges; C2-level prose can be fluent yet rhetorically unanchored.
What to do instead
Spend two minutes on a skeleton: thesis in one sentence, two or three supporting claims, one anticipated counter-argument, and a conclusion that resolves rather than repeats. Check that a reader could extract your stance from the first paragraph alone.
Producing long, subordinate-clause-heavy sentences that lose grammatical control halfway through, leaving a dangling participle or an ungoverned relative clause.
The ambition to demonstrate syntactic range outruns working memory; the writer starts a construction, becomes absorbed in the content, and forgets the subject or auxiliary that must close it.
What to do instead
After drafting, read each sentence aloud and identify its main subject and main verb. If you cannot find them within a few seconds, split the sentence. Reserve one long complex sentence per paragraph and keep the rest shorter.
Using advanced vocabulary in the wrong collocation or register, e.g. pairing a formal noun with an informal verb, or choosing a near-synonym with the wrong transitivity or preposition.
Candidates learn low-frequency words from word lists and dictionaries without absorbing their collocational and grammatical behaviour, so the word is known but not usable.
What to do instead
Record new items as full collocations and patterns (verb + preposition, noun + noun, adjective + noun) rather than isolated words, and check the dictionary entry for transitivity, countability, and register labels before using the item in production.
Using discourse markers as decoration, inserting 'moreover' or 'nevertheless' where the logical relation is addition or contrast that the sentence does not actually carry.
Markers are taught as a checklist of 'linking words' to sprinkle in for a higher band, so candidates select them by formality rather than by the relation they encode.
What to do instead
For each connector, ask what relation it names and verify that relation holds between the two propositions. If the relation is simple addition, a bare 'and' or no marker is correct; delete any connector whose removal leaves the logic intact.
Maintaining a single flat register throughout a task that requires shifting between, say, an informal quotation and formal analysis, or addressing two different audiences in one text.
Candidates equate C2 performance with sustained formality and avoid contractions and idiomatic language even where the genre demands them, flattening the text's social texture.
What to do instead
Identify the genre's register contract before writing: who speaks to whom, in what role, with what distance. Then deliberately vary sentence length, modality, and lexical density at the points where the text shifts purpose, and mark quoted or reported voices clearly.
In mediation tasks, translating word-for-word and preserving source syntax, producing a target text that is grammatically correct but reads as a calque.
The source text's phrasing is highly activated in memory, and literal transfer feels safer than restructuring; candidates fear that rewording will lose meaning.
What to do instead
Read the source, cover it, and draft the target from your understanding of its message and function. Then compare against the source only to check for omissions and distortions, not for surface correspondence.
Ignoring the mediation brief's purpose and audience, delivering a complete but unfocused rendering instead of the summary, adaptation, or explanation that was actually requested.
Candidates treat all mediation tasks as translation and default to full coverage, missing that the task specifies a length, a reader, and a communicative goal.
What to do instead
Before starting, write down the addressee, the purpose, and the required length or format. Then select and compress content to serve that purpose, and cut any detail that the target reader does not need, even if it is prominent in the source.
Managing time uniformly across sections, so a slow start on reading leaves insufficient time for the extended writing or mediation task, which is then finished in a rushed final minutes.
Candidates rehearse content but not pacing, and the reading section's dense texts absorb attention because each item feels nearly solved.
What to do instead
Set hard per-section time caps in practice runs, mark and move on from any item unresolved after its allotted time, and protect a fixed block for planning and checking the production task. Rehearse the same split until it is automatic.