Word Formation in English
Prefixes, Suffixes, Word Families, and Parts of Speech
Suffixes often change the part of speech: kind -> kindness, persuade -> persuasive, use -> useful.
Exercise 1: Match the Suffix to Its Meaning
Click a suffix on the left, then click the meaning it usually adds.
Suffix
Common meaning / function
Exercise 2: Choose the Correct Noun
Select the noun that best completes each adult-life context.
1.After three months of regular study, her _____ returned.
2.You need written _____ before you can use the photo in an advertisement.
3.Finishing the course while working full-time was a real _____.
4.Small acts of _____ can make a stressful workplace much easier to handle.
5.A good manager should encourage _____ instead of punishing every question.
6.Learning pronunciation requires _____; improvement is rarely immediate.
7.The event failed because the _____ was chaotic and nobody knew the schedule.
8.Treating every _____ as useful feedback makes progress less frightening.
9.Clients usually respect _____ more than a perfect sales pitch.
10.Her sudden _____ from the meeting worried the whole team.
Exercise 3: Form the Noun
Transform the word in orange into the correct noun for the sentence.
1.His calm to the bad news surprised everyone. (react)
2.Clear prevents most workplace misunderstandings. (communicate)
3.The report shows growing between the two regions. (equal)
4.There has been a noticeable in her writing this month. (improve)
5.Budget planning is your this quarter. (responsible)
Spelling watch: use im- before many words beginning with p or m (impossible), il- before l (illogical), and ir- before r (irresponsible).
Exercise 4: Match the Prefix to Its Meaning
Match each prefix group with the meaning it usually adds.
Prefix
Meaning
Exercise 5: Prefixes in Context
Choose the word that fits the professional or everyday context.
1.The instructions were _____, so several customers called support.
2.It would be _____ to promise delivery tomorrow when the product has not arrived yet.
3.The email was sent to the wrong person because I _____ the address.
4.She had to _____ the application after correcting two mistakes.
5.The cafe is popular, but the staff are _____ during lunch hours.
6.I think we _____ the amount of time this project would take.
7.The plan sounded impressive, but some of the assumptions were _____.
8.After the update, the app became almost _____ on older phones.
Contrast: valuable = worth a lot or very useful; valueless = worth nothing. Sensible = practical and reasonable; sensitive = easily affected or aware of feelings.
Exercise 6: Form the Adjective
Type the adjective that fits each sentence.
1.Thank you for the advice; it was really . (help)
2.Your conclusion is not because it ignores the main evidence. (logic)
3.It was to leave the documents unlocked overnight. (responsible)
4.Her presentation was calm, clear, and very . (persuade)
5.This checklist is when you are preparing for an interview. (use)
6.He felt before the medical appointment. (anxiety)
7.The mentor gave me feedback on my portfolio. (value)
8.Without real evidence, the accusation is almost . (value)
9.Taking a break before the final decision was the most option. (sense)
10.Be careful with that topic; it is a issue for the team. (sense)
Pattern: many adverbs end in -ly, but spelling can change: angry -> angrily, automatic -> automatically.
Exercise 7: Form the Adverb
Transform the adjective into the correct adverb.
1.She answered the complaint . (calm)
2.Please read the contract before signing. (careful)
3.He reacted when the meeting was cancelled. (angry)
4.The file is saved every five minutes. (automatic)
5.Prices rose after the announcement. (dramatic)
6.The system is a shared calendar with extra reminders. (basic)
7.We need to respond before the deadline passes. (quick)
8.She spoke about the problems in the department. (honest)
9.The company invested in staff training. (heavy)
10.Some people are good at remembering names. (natural)
Exercise 8: Word Families in Context
Drag the best word from the bank into each sentence.
📚 Vocabulary Bank — Drag the words below:
1.A [ Drop here ] argument is not enough if the evidence is weak.
2.One great [ Drop here ] of the course is its practical focus.
3.Regular speaking practice will [ Drop here ] your confidence.
4.The article gives a [ Drop here ] analysis of the problem.
5.The discussion lacked [ Drop here ] because nobody had prepared.
6.A difficult project can [ Drop here ] your understanding of teamwork.
7.She is a calm and [ Drop here ] manager.
8.The company won the design [ Drop here ] last year.
9.He is [ Drop here ] and hopes to run his own business.
10.The plan felt [ Drop here ]; it solved only the easiest part of the problem.
11.Language learning improves your [ Drop here ] to notice small differences.
12.A [ Drop here ] negotiator listens more than they speak.
Useful patterns: confident in an ability, trust someone, lack something, interested in a topic, satisfied with a result.
Exercise 9: Rewrite with the Target Form
Rewrite each sentence using the expression in brackets. The checker looks for the key phrase, but write a full sentence for practice.
1.She believes she can speak clearly in meetings. (Use: confident in)
2.I believe my colleague is honest and reliable. (Use: trust someone)
3.Many public discussions do not have enough patience. (Use: lack something)
4.He wants to learn more about psychology. (Use: interested in)
5.The client thought the final design was good enough. (Use: satisfied with)
6.This apology is real and sincere, not just clever. (Use: genuine, not ingenious)
Ink Blitz - Writing Challenge
Write a short paragraph describing one life improvement, one skill you want to strengthen, and one thing people lack nowadays. Use at least 8 derived words (for example: improvement, responsibility, confidence, useful, carefully) and 3 prefixes (for example: un-, re-, mis-, over-, under-, in-/im-/ir-).
N
E
R
D
Word Origin
Naturally Eccentric, Remarkably Different
Word Origin
Naturally Eccentric, Remarkably Different
| Word / Phrase | Category | Origin & Explanation |
|---|---|---|
| Suffix | etymology | From Latin sub ('under, after') + figere ('to fasten'). A suffix is fastened after the base word: kind becomes kindness. |
| Prefix | etymology | From Latin prae ('before') + figere ('to fasten'). A prefix is fastened before the base word: possible becomes impossible. |
| Responsibility | grammar | Built from responsible + -ity. The adjective describes a person or action; the noun names the duty itself: She is responsible but It is her responsibility. |
| Confidence | etymology | From Latin confidere, 'to trust fully'. In modern English, use confidence in your ability, but trust someone as a person. |
| Strength | grammar | A noun from the adjective strong. The verb is strengthen: regular practice strengthens memory. |
| Depth | grammar | The noun from deep. The verb is deepen: a conversation can deepen your understanding. |
| Competent | etymology | From Latin competere, originally 'to come together' or 'be suitable'. A competent person is suitable for a task because they have enough skill. |
| Genuine / Ingenious | grammar | Genuine means real, honest, or not fake. Ingenious means clever and inventive. A genuine apology is sincere; an ingenious solution is smart. |
| Jack of all trades | idiom | A traditional phrase for someone with many practical skills. It can be neutral or mildly critical if it suggests breadth without deep expertise. |