A dangling participle is one of the most common — and most frequently overlooked — errors in academic writing. It occurs when you begin a sentence with an -ing or -ed phrase (or a having + past participle phrase), but the subject of the main clause is not the person or thing performing that action.

Here is the problem: the participial phrase creates an expectation. When you write Having reviewed the literature, your reader expects the next noun to be the person who reviewed the literature. If that noun is something else — say, the study or the findings — the sentence breaks down logically. The results cannot review literature. The findings cannot conduct experiments.

In IELTS and PTE writing, this error is surprisingly common because participial phrases are genuinely useful. They allow you to combine ideas concisely and demonstrate grammatical range — both of which examiners reward at Band 7 and above. However, using them incorrectly signals either carelessness or a gap in grammatical control, which can pull your Grammatical Range and Accuracy score down.

The rule is straightforward: when a sentence opens with a participial phrase, the subject of the main clause must be the logical performer of the action in that phrase. If the performer is not the subject, you have three options: (1) change the subject of the main clause to match, (2) rewrite the participial phrase as a full adverbial clause such as Because the researchers had reviewed..., or (3) add the performer before the participial phrase.

This rule applies equally to -ing phrases (Analysing the data...), -ed phrases (Based on the evidence...), and perfect participial phrases (Having completed the survey...). In each case, ask yourself one question: who is doing this? If the answer does not match the subject of your main clause, the modifier is dangling and must be revised.

Imagine writing The government nearly spent 2 billion on defence when you meant The government spent nearly 2 billion on defence. In the first version, nearly spent means the government almost spent but did not quite. In the second, nearly 2 billion means approximately 2 billion. One misplaced word changes the entire meaning of the sentence.

Misplaced modifiers are words, phrases, or clauses that are positioned too far from the word they describe, creating confusion or unintentional absurdity. Squinting modifiers are a specific and particularly tricky type: they sit between two words and could logically modify either one. Both errors create ambiguity, and ambiguity is penalised in IELTS and PTE because it suggests imprecise control of language.

The most common culprits in academic writing fall into three categories. First, restrictive adverbs such as only, just, nearly, almost, and merely must be placed immediately before the word they restrict. Compare: The study only tested three variables (tested, and nothing else) versus The study tested only three variables (three, not more) — the placement of only changes what is being restricted. Second, adverbs of frequency such as always, often, frequently, and usually must sit next to the verb they modify. The sentence Students who study frequently fail examinations is a classic squinting modifier: does frequently describe how often they study or how often they fail? Third, modifying phrases such as based on, according to, and using must be placed next to the noun they describe, not stranded at the end of a sentence where they could attach to the wrong word.

The core principle is proximity: place every modifier as close as possible to the word it modifies. If a modifier could attach to two different words, the sentence needs to be restructured until the meaning is unambiguous. This principle is especially important in exam writing, where the reader — the examiner — will not give you the benefit of the doubt.

You now know how to identify dangling participles and misplaced modifiers. The challenge in an exam is applying this knowledge under time pressure, in complex sentences where multiple modifiers interact. In IELTS Task 2 and PTE Write Essay, you will produce paragraphs containing four to eight sentences, each potentially harbouring relative clauses, participial phrases, adverbial expressions, and adjective phrases. Each of these is a modifier, and each one must be placed correctly.

The highest-value modifier structures for exam writing fall into three categories. First, relative clauses (who, which, that) add detail to a noun and must sit immediately after it. Compare: Governments that invest in education typically see long-term economic growth (correct — that invest modifies governments) versus Governments typically see long-term economic growth that invest in education (incorrect — that invest is stranded, appearing to modify growth). Second, participial phrases (based on, given, considering) add context concisely but must attach to the correct noun. Third, adverbial connectors (however, nevertheless, consequently) signal relationships between ideas and must be positioned so their logical scope is clear.

The strategy for exam conditions is systematic and efficient. Step one: after writing a sentence, check every modifier by asking what does this modify? Step two: if the modifier could attach to more than one word, move it next to the intended word. Step three: if repositioning creates an awkward sentence, rewrite using a full clause with an explicit subject. This three-step process should take no more than ten to fifteen seconds per sentence. With repeated practice, it becomes automatic — and that automaticity is what separates Band 6 accuracy from Band 7 or above.