The harder you work, the more you achieve (C1 Grammar)
Use this pattern to link two things that rise or fall together: change one and the other changes in proportion. FORM: the + a comparing word at the front of each of two halves — the + comparing word + clause, the + comparing word + clause. For short words the comparing word takes -er (the harder, the sooner, the older); for the falling direction use the less or the fewer. Keep the in front of both halves. It is a compact, emphatic pattern — reach for it in advice, argument and headlines when you want the link between the two changes to feel inevitable.
Two things changing together: the ... , the ...
The harder you work, the more you achieve.
The sooner we leave, the earlier we arrive.
The longer I waited, the less hopeful I became.
Not "Harder you work, better you get." — say "The harder you work, the better you get.". Both halves start with the: the harder ... the better, not just "harder ... better".
Try it: Lars is encouraging Amina before her exam: ___ you start, the calmer you will feel. (The sooner / Sooner / The soonest) Answer: The sooner — Both halves of this pattern start with the + a comparing word, and soon is a short word, so it takes -er: the sooner (matching the calmer in the second half). "Sooner" on its own drops the the that the pattern needs. "The soonest" is the top-of-the-scale word, but here two things move together, so the comparing word is the sooner.
Longer words: the more / the less
For longer words that do not take -er, put the more or the less in front of the whole word: the more expensive, the less complicated. The more goes with anything, countable or not (the more time, the more mistakes). It is the falling direction that splits: careful writing uses the fewer for things you can count (the fewer errors) and the less for things you cannot (the less time), though you will hear the less with countable things in speech. Never combine more with an -er word — pick one way of comparing, not both. This is the plain, explanatory version of the pattern; use it when you want the two changes spelled out clearly rather than clipped.
The more experienced you become, the more confident you feel.
The more carefully you plan, the fewer problems you meet.
The less you rush, the better you perform.
Not "The more harder you work, the more better." — say "The harder you work, the better.". Use the harder OR the more difficult, never the more harder: pick one way of comparing, not both.
Try it: Mei is describing a piece of software: ___ the interface, the more people struggle to learn it. (The more complicated / The complicateder / More complicated) Answer: The more complicated — Complicated is a long word, so it cannot take -er; it needs the more in front: the more complicated. "The complicateder" invents an -er ending that this word never takes. "More complicated" drops the the that both halves of this pattern need.
Keep normal order after each half
In the full form, each half is a clause in normal statement order — subject + verb, just like an ordinary sentence — after the the + comparing word. Don't swap them into question order. So each half is the + comparing word + subject + verb, and this is the fully spelled-out version you will use in most speaking and everyday writing. (In heavier formal prose you may come across the verb be moved in front of a long subject in the second half — "the greater the pressure, the more rapid is the response" — but that is an optional flourish, never something you have to do.)
The older she gets, the wiser she becomes.
The more I read, the less I understand.
The harder they tried, the worse it got.
Not "The older gets she, the wiser becomes she." — say "The older she gets, the wiser she becomes.". Keep normal order after each half: she gets, not "gets she".
Try it: After each the + comparing word, the person and the action follow. Which one keeps that order? (The older she gets, the wiser she becomes. / The older gets she, the wiser becomes she. / Older she gets, wiser she becomes.) Answer: The older she gets, the wiser she becomes. — After the + a comparing word, the normal order follows: she gets, she becomes. The second option swaps the person and the action into question order, which this pattern does not do. The third drops the the from both halves. So it is the older she gets, the wiser she becomes.
Reduced and clipped forms (formal / emphatic)
In formal, literary or punchy writing you can drop the verb — usually be — to make each half shorter and sharper: The more expensive the hotel, the better the service (= the more expensive the hotel is, the better the service is). The fixed saying the sooner, the better strips it right down to the two comparing words. Reach for the reduced form when you want a crisp, proverb-like, emphatic effect — in slogans, aphorisms and formal prose; keep the full subject-verb clause for ordinary explanation. When you drop be, don't reinsert it in inverted order: the noun simply follows the comparing phrase.
The more expensive the hotel, the better the service.
The less complicated the process, the faster the results.
The larger the sample, the more reliable the findings.
Not "The large the sample, the reliable the results." — say "The larger the sample, the more reliable the results.". Cutting be does not mean cutting the comparison: each half still needs its comparing word (larger, more reliable), or the pattern falls apart.
Try it: A research report wants the crisp, formal reduced form. Which one is right? (The larger the sample, the more reliable the results. / The larger is the sample, the more reliable are the results. / Larger sample, more reliable results.) Answer: The larger the sample, the more reliable the results. — The reduced form drops be and leaves the noun straight after the comparing phrase: the larger the sample, the more reliable the results. The second option keeps is and are, so whatever else it is, it is not the reduced form this question asks for (it is a stiff, old-fashioned full version). The third throws away the the that both halves of this pattern must keep, so it stops being the pattern at all.