B2 FIRST · GRAMMAR · PART 3

Word formation: suffixes

How to make nouns, adjectives, adverbs and verbs with endings like -tion, -ness, -ful, -able and -ly.

Finn the puffin with glasses and a book, your grammar teacher
Finn says

In Part 3 you change a word so that it fits the gap. First find what kind of word you need, then choose the right ending. Let's look at the endings that come up again and again!

Which kind of word do you need?

Look at the words around the gap first.

Noun
after a / the / my, an adjective or a preposition
the importance of sleep; a lot of patience
Adjective
before a noun, or after be / seem / become
a dramatic change; it was unforgettable
Adverb
describes a verb, an adjective or the whole sentence
Fortunately, …; extremely cold
Verb
after a subject, to, can, will…
Exercise can strengthen your bones.

Noun endings

-tion / -sion / -ation
verb → noun
invent → invention, decide → decision, communicate → communication
-ment
verb → noun
achieve → achievement, employ → employment, equip → equipment
-ness / -ity
adjective → noun
happy → happiness, lazy → laziness, popular → popularity
-ance / -ence
verb / adjective → noun
guide → guidance, patient → patience, differ → difference
-er / -or / -ist
people
compete → competitor, science → scientist, support → supporter
-dom / -ship / -ure
other nouns
free → freedom, friend → friendship, fail → failure

Adjective endings

-ful / -less
with / without
use → useful, care → careless
-ous / -al / -ic
common adjective endings
danger → dangerous, nature → natural, drama → dramatic
-able / -ible
can be done
afford → affordable, access → accessible
-ive / -y
more adjectives
attract → attractive, health → healthy
-ing / -ed
what causes the feeling / the person who feels it
a boring film – I was bored

Adverbs, verbs and spelling

-ly / -ally
adjective → adverb (-ic → -ically)
quick → quickly, easy → easily, dramatic → dramatically
-en / -ise / -ify
make something …
strong → strengthen, modern → modernise, simple → simplify
Spelling changes
y → i, drop the e, double the consonant
happy → happiness, use → usable, begin → beginning

How it comes up in Part 3

In Part 3 you change the word in capitals so that it fits the gap: the right kind of word, the right form and the right spelling.

Many students suffer from anxiety before exams.
ANXIOUS

After 'from' we need a noun: anxious → anxiety.

The trip was memorable – I will always remember it.
MEMORY

After 'was' we need an adjective: memory → memorable.

Fortunately, nobody was hurt in the accident.
FORTUNE

At the start, before a comma: an adverb that comments on the whole sentence.

Common mistakes

  • ✗ The concert was very excited.✓ The concert was very exciting.-ing for what causes the feeling; -ed for the person who feels it.
  • ✗ She spoke very confident.✓ She spoke very confidently.An adverb describes a verb.
  • ✗ We need more informations.✓ We need more information.Some nouns are uncountable – no plural 's'.
Finn the puffin, smiling kindly
Finn's exam tip

Before you write, ask two questions: what kind of word is missing (noun, adjective, adverb or verb)? Does it need to be plural or negative? Then check your spelling carefully – a misspelt word gets no marks.

Quick check

Use the word in capitals to form a word that fits the gap.

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