Where it appears in the exam
What is it?
This competency covers structures like "the more..., the more...", "the less..., the better" or similar combinations to express that one change causes another change. The instinct is to express the idea loosely, without thinking of a fixed template, but in English that relationship is built with a very stable and very visible form.
Why it matters in the exam
In B2 First it usually appears when you have to rebuild a proportional relationship precisely, especially in key word transformations and sometimes in cloze with close options. If you recognise the idea but get the template wrong, you lose the full answer even though you understood the general meaning.
The cognitive trap
"Your instinct drops the the in the correlative: "More you study, better you do in exams.""
The brain treats "the" as an article that points to a specific noun, so when no noun follows it feels redundant and gets dropped. But here "the" isn't an article — it's the fixed marker that links the two halves of a proportional relationship, and the structure collapses without it on each side.
"The more you study, the better you do in exams." / no "More you study, better you do in exams."
In English the correlation needs the complete structure with the before each comparative. It isn't optional or decorative: it marks the proportional relationship between the two halves.
Recognition pattern
In the exam, look for the key signal first. The answer follows.
Signals that activate this structure
"The more you read in English, the more natural complex grammar becomes."
"The less you rely on translation, the better your speaking will be."
"The longer we waited, the angrier the crowd became."
"The more expensive tickets are, the fewer people buy them."
"The harder you train, the stronger you get."
The errors that cost you marks in the exam
"More you revise, more confident you'll feel on exam day."
Cambridge penalises it because the is missing in both parts. It's a very typical reflex error.
"The more you revise, the more confident you'll feel on exam day."
Correct because both halves take the + comparative and express a clear progressive relationship.
"The earlier we leave, less traffic we'll face."
The second half also needs the. In this structure you can't drop it just because it has already appeared.
"The earlier we leave, the less traffic we'll face."
It combines two different comparatives naturally: earlier and less traffic.
"The more expensive the course is, the less students can afford it."
Here there's a real grammar-choice error: with a countable plural you need fewer, not less.
"The more expensive the course is, the fewer students can afford it."
The sentence uses a complete correlation and also distinguishes expensive and fewer students well.
"The more he earns, the more than he spends."
Cambridge penalises it because the correlative structure doesn't take «than». You add «than» out of habit from normal comparatives (more than), but here it breaks the template.
"The more he earns, the more he spends."
The correlation «the more…, the more…» connects two changes without any extra linker.
"The more hard the questions were, the more nervous the candidates became."
Cambridge penalises it because hard forms its comparative with -er: harder, not more hard.
"The harder the questions were, the more nervous the candidates became."
It's fine because it uses a comparative adjective + clause in both halves and keeps the temporal logic.
Why your brain gets it wrong
The learner's short circuit
Analyse the trap by exam format
If you sleep more, you feel better. (THE) → The more you sleep, ______ you feel.
The second half of the correlation also needs «the» before the comparative. The instinct is to treat «the» as an article and drop it when no noun follows, so it gets omitted and you end up with «better you feel» instead of «the better you feel».
The more you sleep
The correlative structure requires «the + comparative» in BOTH halves, not just the first.
→ the better
The second «the» is the one that gets forgotten
In Part 4, you usually build the first half well («The more you sleep») and then abandon the template in the second, writing an ordinary sentence. The correlation only works if both halves begin with «the + comparative».
Strategy
When you rebuild a proportion («the more…, the better…»), check that each half begins with the + comparative: the more…, the better…; the less…, the easier….
Double comparatives (the more... the more) is 1 of 82
The exam tests 82 grammar competencies across 19 families. Mastering one is the first step. Automating all 82 is passing.
Related competencies