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Intermediate | IELTS & CELPIP

Suffixes

Learn how to use suffixes to change word forms and enhance your English proficiency at the B2 level.

Suffixes are letters added to the end of a word to change its grammatical function, such as converting verbs to nouns or adjectives to adverbs. Mastering suffixes allows you to express ideas more precisely, which is essential for effective communication at a B2 level.

Examples

Example 1

IncorrectThe city needs a more effect response to late buses.

BetterThe city needs a more effective response to late buses.

The suffix '-ive' is used to form an adjective that describes the type of response needed.

Example 2

IncorrectRegular speaking practice improved pronounce and confident.

BetterRegular speaking practice improved pronunciation and confidence.

The suffix '-ation' turns 'pronounce' into 'pronunciation', a noun, and '-ence' turns 'confident' into 'confidence'.

How It Works

Meaning

Suffixes are letters added to the end of a base word to alter its grammatical function, such as changing a verb to a noun or an adjective to an adverb. They help create more precise expressions by modifying the word class.

For example, adding '-tion' to 'inform' creates the noun 'information'. At the B2 level, mastering suffixes is crucial for nuanced communication.

Use it when

  • Converting verbs to nouns for formal writing (e.g., 'decide' to 'decision').
  • Changing adjectives to adverbs in descriptive writing (e.g., 'quick' to 'quickly').
  • Creating adjectives from nouns for detailed descriptions (e.g., 'help' to 'helpful').
  • Forming nouns from adjectives to discuss abstract concepts (e.g., 'happy' to 'happiness').

See it

The decision was made after careful consideration.
She reacted quickly to the unexpected news.

Quick rules

  • Identify the required word class before adding a suffix.
  • Use common suffixes like '-tion', '-ment', '-ness', '-able', '-ive', and '-ly'.
  • Adjust spelling when necessary (e.g., 'happy' becomes 'happiness').
  • Ensure the new word fits naturally within the sentence context.

Common Mistakes

Common problem 1

using a suffix that does not match the sentence slot

WeakThe new policy brought stable to the bus schedule.

StrongThe new policy brought stability to the bus schedule.

Fix: Use the noun-forming suffix '-ity' to match the required noun slot.

Common problem 2

using a base adjective where the sentence needs a noun

WeakThe campaign increased aware of road safety.

StrongThe campaign increased awareness of road safety.

Fix: Use the noun-forming suffix '-ness' for the noun slot.

Common problem 3

using an adjective where a verb modifier needs an adverb suffix

WeakThe driver reacted quick when the signal changed.

StrongThe driver reacted quickly when the signal changed.

Fix: Add '-ly' to form an adverb that modifies the verb.

Practice Lab

Practice

Identify the correct suffix form, then apply it in context.

Score: 0/3

Focus on the sentence meaning to determine the correct suffix.

1. Quick pick

Choose the correct sentence.

2. Build it

Put this sentence in the correct order.

Tap a chunk to move it down. Tap it again to send it back.

3. Final sort

Determine if each sentence is correct or needs a fix.

The project was successful.

The project was success.

Why It Matters

🎯 Why it matters: Mastering word formation through suffixes allows you to convey precise meanings and create more sophisticated sentences, which is crucial for success in IELTS and CELPIP exams.

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