Writing Tips
10 Common Mistakes in UK Academic Writing and How to Avoid Them
Most markers are not hunting for reasons to deduct marks. They are reading for clarity, accuracy and control, and when a piece of work falls short it is usually because of the same handful of habits: a sentence that reads like a text message, a claim floating free of any evidence, a tense that changes halfway down a paragraph. None of these are signs of a weak mind. They are signs of a draft that has not yet been edited. What follows are the ten mistakes that turn up most often in UK academic writing, why each one costs marks, and how to put it right before you submit.
1. An informal tone that creeps in unnoticed
Few students sit down to write a deliberately chatty essay. The informality arrives in small pieces: a contraction here, a rhetorical question there, and suddenly the register has slipped. Watch for words such as "a lot of", "huge", "basically", "stuff" and "things", and for habits like opening a paragraph with "So". Exclamation marks and direct address ("you will notice that…") belong in a blog post, not in an assessed essay.
Compare these two sentences:
Informal: A lot of researchers have looked at this and they basically agree it's a massive problem, so it's obviously worth fixing.
Academic: Much of the existing research on this question points in the same direction, which suggests the problem warrants closer attention.
The second version is not more complicated. It is simply more precise. Read your final draft aloud; your ear will catch most of the slippage.
2. Claims too vague to argue with
"Social media has a huge impact on teenagers" is not a claim you can defend, because it does not say enough to be wrong. Which platforms? Which age group? What kind of impact, measured how, over what period? A claim earns marks when it is narrow enough to be supported by the evidence you actually have.
A useful shape is: specific subject, named mechanism, clear scope, supporting source. So the sentence above becomes something like: "Among secondary school pupils, late-night use of image-based platforms appears to be associated with poorer sleep quality (Author, year)." Note the careful verbs — appears, associated with — rather than proves. Hedge where the evidence is limited, and avoid absolutes such as "everyone", "never" and "always" unless you can genuinely defend them.
3. A tense that wanders
Different parts of an essay use different tenses, and that is fine. The mistake is switching mid-paragraph without reason. A simple set of conventions covers most essays:
- Literature review: present tense — "Bennett argues that…"
- Methodology and results: past tense — "Forty participants were recruited…"
- Discussion and conclusions: present tense — "The findings suggest…"
Check one paragraph at a time and mark every verb. It takes two minutes and catches errors that a spellchecker never will. While you are there, check your pronouns too: mixing "I", "you" and "the reader" in the same essay reads as uncertainty, even when it is not.
4. Overloaded sentences, underdeveloped paragraphs
A paragraph works best when it makes one point. Open with a topic sentence that states that point, develop it over four to six sentences, then stop. If a paragraph runs to a page, it is usually doing two jobs at once; if it runs to two sentences, it probably has not done its job at all.
Sentences over roughly thirty words are worth splitting. Cutting padding helps too — these phrases rarely add anything:
- "It is important to note that…"
- "In order to" (use "to")
- "Due to the fact that" (use "because")
- "There are many factors that…"
- "As previously mentioned…"
5. Loose handling of sources
Patchwriting is the quiet killer of essay marks: you keep the shape of the original sentence and swap a few words, then cite nothing because the wording has technically changed. The idea is still borrowed. If a point came from a source, it needs a citation, whether you paraphrased it or not.
Two habits prevent most problems. First, take notes with page numbers attached, so you never have to hunt for a reference later. Second, cite only what you have read: if you are relying on another author's summary of a study, use the "cited in" form your department recommends rather than listing the original as though you had consulted it. Quotations longer than about three lines are usually set as an indented block without quotation marks, followed by the page number. Check your module handbook for the required style — Harvard is common across UK universities, but departmental rules vary, and following them exactly is free marks.
6. Small inconsistencies that look like carelessness
Markers notice when a document does not agree with itself. British and American spellings mixed in the same essay ("organise" next to "organize", "analyse" next to "analyze") suggest the text was assembled rather than written. Set your spellchecker to English (UK) and run it again at the end.
The same applies to numbers, capitalisation of headings, italicised titles, spacing and the reference list, which should run alphabetically by author surname with a consistent format throughout. None of these details affect your argument, but together they shape the impression of care that a reader forms in the first two pages.
A five-minute check before you submit
- Search the document for "really", "very", "a lot", "basically" and "so" at the start of sentences.
- Underline every claim. Does each one have evidence, a source, or a clear reason to be believed?
- Read one body paragraph aloud and confirm the tense stays steady.
- Check every in-text citation against the reference list, and every reference against the text.
- Confirm the language is set to English (UK) and run the spellchecker once more.
- Read only the first sentence of each paragraph, in order. That skeleton should tell the whole story of your argument.
Editing is not the same as doubting yourself. It is the stage where good ideas stop being buried under avoidable noise, and it is usually the difference between a competent essay and one that reads as though it was written by someone in full control of the material.
