Academic English revision

Your AI Draft Reads Like a Manual? Fix It with Parentheses

Robotic drafts fail because they lack breathing room. Parentheses are your subtle rhythm tool; use them to isolate non-core details and restore narrative flow.

You stare at the screen. The AI-generated paragraph is grammatically perfect. Every word is sophisticated. Yet you can’t finish reading it. Why? It’s too smooth. It flows like a straight line without ripples. Real academic writing breathes. Authors weave in supplementary details, examples, or counterpoints between the main clauses. These asides create a mental cadence. AI often flattens these nuances into the main sentence, resulting in that dense, manual-like texture that makes your eyes glaze over.

Parentheses and asides are the first key to fixing this, but they’re also the most misused. Most students either avoid them entirely, making their prose dry and staccato, or overuse them until the sentence structure collapses. The rule is simple: content inside parentheses must be non-core supplementary information. If you remove the parenthetical phrase and the main clause remains grammatically intact and logically sound, it’s a valid aside candidate. If not, it belongs in the main stream.

Consider this contrast. ❌ Before: The government implemented new policies which were controversial and they affected the economy significantly. This sentence is dragging its feet like a student rushing to meet a deadline. ✅ After: The government implemented new policies (notably the tax reform) that affected the economy significantly. The parenthetical “(notably the tax reform)” is a classic academic aside. It provides specific detail, but the main clause “The government implemented new policies that affected the economy significantly” stands independently. This is far lighter and more rhythmic than using a non-restrictive relative clause with 'which'.

Here’s a subtler error. ❌ Before: Climate change is a major issue (that scientists have been warning about for decades). Notice how the relative pronoun 'that' is trapped inside the parentheses. This is a syntactic trap. In standard American academic writing, you rarely include the main clause’s relative pronoun or conjunction inside a parenthetical unless it’s part of a list. ✅ After: Climate change is a major issue (as scientists have long warned). Or even simpler: Climate change is a major issue—(and one that has been debated for decades). Removing the redundant 'that' instantly cleans up the sentence. This is often why AI output feels “off”; it lacks boundary sense for punctuation marks.

Another common AI habit is using dashes or commas to insert long information blocks. ❌ Before: The results, which were unexpected and contrary to our hypothesis (and also inconsistent with previous studies), suggest... See how the information piles up? The reader has to backtrack repeatedly to untangle the structure. ✅ After: The results (unexpected, contrary to our hypothesis, and inconsistent with previous studies) suggest... Or simply split it into two sentences. Parentheses act as a “capsule” for complex qualifiers, keeping them from contaminating the main clause’s skeleton. Remember: parentheses are a container, not a trash can.

There is one detail often overlooked: nested parentheses. If you need to explain something inside your parenthetical, don’t use another set of inner parentheses; that’s coding syntax, not academic prose. ✅ After: The model (a variation of LSTM, which is itself a type of RNN) showed... This level of nesting is acceptable in long texts, but frequent occurrences will confuse your reader. General rule: if your aside contains more than two distinct phrases, start a new sentence or use an em-dash. Parentheses are for short, sharp asides—like a footnote in the flow of thought.

So, next time your AI draft reads like a robot reciting data, don’t just ask it to “sound more natural.” Inspect the sentence architecture. Isolate non-core supplementary information into parentheses and observe if the rhythm improves. I never manually restructure this part; I just run it through easydue, which identifies candidate asides automatically. That saves the hours you’d spend agonizing over syntax so you can focus on your actual argument. Naturalness isn’t built by adding adjectives; it’s engineered through syntactic rhythm.