Word Formation Tips and Tricks;
Approaching the Exam
How do you get those extra few points to pass the exam? Here we present some Use of English Word Formation tips and tricks.
Whether you are sitting the FCE (B2), CAE (C1) or CPE (C2) exams from Cambridge, to maximise your score on the Use of English Part 3 (Word Formation), you should balance grammatical context with vocabulary knowledge. The exercise format is exactly the same at all levels, though obviously the language becomes more complex as the language exams go upwards
Remember that you must change the word in this exercise and that you realistically have about 6-8 minutes to do the task and fill the answers into the answer sheet.

⏱️ A Step-by-Step Exam Strategy
- Read the Whole Text First
- Spend 30 seconds reading the complete passage before writing anything.
- Understanding the global context prevents you from missing changes in tone or direction.
- Analyse the Sentence Surrounding the Gap
- Look at the words immediately before and after the empty space.
- Clues like articles (a, an, the) or prepositions (of, in) indicate what part of speech is missing.
- Identify the Required Part of Speech
- Decide if the sentence requires a noun, verb, adjective, or adverb.
- Evaluate the Meaning (Positive vs. Negative)
- Check if the context requires a negative prefix (e.g., turning happy into unhappy).
- There is almost always at least one negative word, if not two, required per text.
- Check for Plural Forms
- If the missing word is a countable noun, read the surrounding sentence to see if it needs an "-s" at the end. Sometimes countable and uncountable are ambiguous, and both might fit.
🧱 Clues to Identify Parts of Speech
Use the structure of the sentence to quickly isolate what type of word you need:
| Context Clue | Required Part of Speech | Example |
|---|---|---|
| After an article (the / a) or possessive (my). Sometimes an adjective comes after the article, strongly indicating a noun is needed. | Noun | "It was a great achievement (achieve)." |
| Before a noun, or after verbs like be/seem. | Adjective | "The weather was predictable (predict)." |
| Modifying an adjective. For example, adverbs are formed from adjectives. Adjectives also have comparative or superlative forms, so they adapt into various aspects of speech. | AdverbComparative and Superlative | "Surprisingly (surprise), it didn't rain.""The rain lasted longer (long) than we had expected." |
| After a modal verb (will/should) or following the preposition to. | Verb | "They need to modernise (modern)." |
🔀 Master Common Prefixes and Suffixes
You will need to construct word families quickly. Memorise these common B2 patterns:
- Noun Suffixes:
-ment(improvement),-tion(competition),-ness(weakness),-ence/-ance(attendance),-ity(ability). - Adjective Suffixes:
-ful(helpful),-less(careless),-able(comfortable),-ous(dangerous),-ive(creative). - Adverb Suffixes: Usually
-ly(quickly) or-allyfor words ending in -ic (automatically). - Negative Prefixes:
un-(unusual),in-(inaccurate),im-(impossible),dis-(disagree),ir-(irresponsible).
Remember that UK and US speaking conventions are both perfectly acceptable, and the choice of -ise or -ize is up to the exam candidate. Both are correct.
The Cambridge exams are a test of English, not any regional form of the language.
⚠️ Golden Rules to Avoid Losing Easy Marks
- Double Changes: Be prepared to make two changes to a root word. For example, changing a verb like comfort into a negative adjective like uncomfortable.
- Spelling Matters: A misspelled word gets zero marks, even if you guessed the right form. Watch out for dropped letters (eg; argue > argument; the 'e' in argue is dropped). Also look out for extra letters (eg; luck > luckily; exam candidates often miss the 'i' required to create the adverb luckily).
- Trust Your Instincts: If a word naturally pops into your head while reading, write it down; your language exposure is likely guiding you correctly.
- Never Leave a Blank: There is no penalty for wrong answers. Guess if you have to, as you might get lucky.
Differences between the different levels.
1. Structural Shifts: Single vs. Multiple Changes
- FCE (B2): The vast majority of gaps require only one standard change (e.g., turning a verb into a noun, or an adjective into an adverb). Double changes (like adding both a prefix and a suffix to make uncomfortable) happen occasionally, but they are the exception, not the rule.
- CAE & CPE (C1/C2): Multiple transformations are the default baseline. You will routinely have to use an internal vowel shift, add a suffix, and add a negative prefix all to the same root word (e.g., turning COME into income, or OUT into outcome).
2. Root Words vs. Base Morphemes
- FCE (B2): The root word given in the margin is almost always a recognizable, fully formed standalone word (e.g., FRIEND, EMPLOY, DANGER). Your job is simply to change its category.
- CAE & CPE (C1/C2): Provided prompts are frequently abstract, archaic, or minimal root morphemes (e.g., LONG, JUST, COMPANY). You have to scale up into highly complex, specialized vocabulary like longevity, unjustifiable, or unaccompanied.
3. Sentence-Level vs. Global Text Context
- FCE (B2): You can safely solve about 80% of the gaps just by looking at the immediate grammar clues in the single sentence surrounding the gap (e.g., seeing an article like "the" right before the blank tells you it's a noun).
- CAE & CPE (C1/C2): The context shifts globally. Sentences might look complete and grammatically sound on their own, but the overarching tone of the entire paragraph dictates whether the word needs to be a negative, a plural, or a highly specific variant.
4. Compounding and Inversions
- FCE (B2): Compound words are incredibly rare. You are almost exclusively dealing with single-word units formed by standard affixes.
- CAE & CPE (C1/C2): Compounding is heavily tested. You will be expected to create compound adjectives (e.g., turning) CREDIT into praiseworthy or BROKEN into heartbroken) or handle words requiring prefix inversions (e.g., turning TAKE into overtake or undertake).
5. Idiomatic & Fixed Expressions
- FCE (B2): The required word fits neatly into literal prose. If the sentence is about a mountain, the word might be mountainous.
- CPE (C2): The missing word is often part of a fixed phrasal expression or idiom. For example, given the root STAND, you might have to form notwithstanding to act as a complex conjunction.
Word Formation Tips and Tricks
Read specifically about your particular level and try an exercise for each exam by clicking the links.
You can also read more about the Cambridge language exams at the following link.

