Types of Adverb and Formation — English Grammar Exercises
slowly, well, hard, happily — regular and irregular adverbs, plus degree modifiers, in 45 exercises.
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Types of adverbs
| type | tells us | examples |
|---|---|---|
| manner | how | slowly, carefully, well |
| place | where | here, there, outside |
| time | when | yesterday, soon, late |
| frequency | how often | always, often, never |
| degree | how much | very, really, extremely |
Forming adverbs from adjectives
| adjective ends in… | rule | example |
|---|---|---|
| consonant | + -ly | quiet → quietly |
| consonant + -y | -y → -ily | happy → happily, heavy → heavily |
| consonant + -le | drop e, + -y | gentle → gently, simple → simply |
| -ic | + -ally | logic → logically, automatic → automatically |
| -e | drop the e | true → truly |
The adverb describes how the action is done, so it is the adverb — not the adjective and not the noun — that goes with the verb: She spoke quietly, never She spoke quiet.
Irregular adverbs
| adjective | adverb | example |
|---|---|---|
| good | well | She sings well. |
| bad | badly | He plays the piano badly. |
| fast | fast | Don't drive too fast. |
Fast keeps the same form as the adjective — there is no word fastly.
Adverbs of degree
| modifier | example |
|---|---|
| very | The book was very interesting. |
| really | I really enjoyed the concert. |
| extremely | She is extremely talented. |
| terribly | The lecture was terribly long. |
Really is the one that can also go before a verb. Very cannot — never I very enjoyed it.
Some adverbs have a second form with a completely different meaning — hard and hardly, late and lately. Those pairs, and the rules for where an adverb goes in a sentence, are covered in Adverbs: Confusing Pairs and Position.
Common mistakes
| ❌ | ✅ |
|---|---|
| She spoke quiet. | She spoke quietly. |
| The children played happyly. | The children played happily. |
| She solved it logicly. | She solved it logically. |
| She sings very good. | She sings very well. |
| He drives fastly. | He drives fast. |
| I very enjoyed the concert. | I really enjoyed the concert. |
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She spoke ___ during the meeting.
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quietly
The word describes how she spoke, so it needs an adverb: 'quiet' + -ly = 'quietly'. 'Quiet' is the adjective and 'quietness' the noun.
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He drives ___ on icy roads.
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carefully
The word describes how he drives, so it needs an adverb — 'carefully'. 'Careful' is the adjective.
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She sings very ___.
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well
'Good' is irregular: its adverb is 'well'. 'Better' is the comparative form.
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The train moved ___ out of the station.
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slowly
The word describes how the action is done, so it needs an adverb. The other options are the adjective and the noun.
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Don't drive too ___ on this road.
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fast
The adverb of 'fast' has the same form as the adjective — 'fast'. 'Faster' and 'fastest' are the comparative and superlative.
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The children are playing ___ in the garden.
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happily
Adjectives ending in -y change to -ily: 'happy' → 'happily'. 'Happiness' is the noun.
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She explained the problem ___.
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simply
Adjectives ending in -le drop the e and add -y: 'simple' → 'simply'. 'Simplicity' is the noun.
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She smiled ___ at every customer.
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politely
The word describes how the action is done, so it needs an adverb. The other options are the adjective and the noun.
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I'm ___ sorry to hear about your loss.
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truly
'True' drops the final e: 'truly'. 'True' is the adjective and 'truth' the noun.
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The book was ___ interesting — I couldn't put it down.
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very
Use 'very' before an adjective. 'A lot' goes with verbs, not adjectives.
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I ___ enjoyed the concert last night.
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really
Use 'really' before a verb. 'Very enjoyed' is wrong — 'very' doesn't modify verbs.
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He plays the piano ___, but he enjoys it.
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badly
'Badly' is the adverb of 'bad' and describes how he plays.
Adverb Types and Formation
Adverbs of manner are among the most frequently misformed words in learner English, because the regular '-ly' rule has several silent exceptions that must be memorised individually. Analysis of learner writing shows that spelling errors in regular '-ly' formation — 'quietely' instead of 'quietly', 'happyly' instead of 'happily' — survive long after the rule itself is understood. Alongside them sit three very common adverbs that ignore the pattern altogether, and a small set of degree words that strengthen an adjective or a verb. These 45 exercises cover exactly those three things: forming the adverb, the irregular handful, and saying how much.
Regular Adverb Formation: -ly, -ily, -ally
The default rule adds -ly directly to the adjective. Three groups of adjectives need a small spelling adjustment first.
happy → happily, heavy → heavily (-y changes to -ily after a consonant)
gentle → gently, simple → simply (-le drops the e and adds y)
logic → logically, automatic → automatically (-ic adjectives add -ally)
true → truly (drops the silent e)
The word describes how the action is done, so what follows the verb is the adverb — not the adjective and not the noun. 'She spoke quietly' works; 'she spoke quiet' and 'she spoke quietness' do not.
Irregular Adverbs: well, badly, fast
Three high-frequency adverbs don't follow the -ly pattern. Two are genuinely irregular, and one simply keeps the form of its adjective.
He plays the piano badly. ('bad' → 'badly')
Don't drive too fast. (same form as the adjective; there is no word 'fastly')
Adverbs of Degree: very, really, extremely
Degree modifiers say how strongly a quality applies, and they stand before the adjective or adverb they strengthen. One of them behaves differently: really can also go before a verb, where very is impossible.
I really enjoyed the concert. (before a verb — never 'very enjoyed')
She is extremely talented for someone her age.
The lecture was terribly long, but the topic was interesting.
Common Mistakes
✗ The children played happyly. → ✓ The children played happily.
✗ She solved it logicly. → ✓ She solved it logically. (-ic adds -ally)
✗ She sings very good. → ✓ She sings very well.
✗ He drives fastly. → ✓ He drives fast.
✗ I very enjoyed the concert. → ✓ I really enjoyed the concert.
Adverbs with a second form that means something else — hard and hardly, late and lately, high and highly — are practised in Adverbs: Confusing Pairs and Position, together with the rules for where an adverb goes in a sentence.
Frequently Asked Questions
How do you form an adverb from an adjective in English?
Most adverbs are formed by adding '-ly' to the adjective: quiet → quietly, careful → carefully, correct → correctly. Three spelling changes apply to specific endings: adjectives ending in a consonant + '-y' change 'y' to 'i' before adding '-ly' (happy → happily); adjectives ending in '-le' drop the 'e' and add 'y' (simple → simply); and adjectives ending in '-ic' add '-ally', not just '-ly' (enthusiastic → enthusiastically, automatic → automatically). Adjectives ending in a silent 'e' usually just add '-ly' (true → truly, dropping the 'e'). These spelling rules account for most of the mistakes learners make when forming a new adverb they haven't seen before.
What is the difference between 'hard' and 'hardly'?
'Hard' is both the adjective and the adverb of effort: 'hard work', 'he works hard' (= with a lot of effort). 'Hardly' looks like its adverb form but means something completely different: 'almost not'. 'I can hardly hear you' means I can barely hear you, the opposite of hearing well. Because '-ly' normally turns an adjective into its adverb, learners often assume 'hardly' means 'in a hard way', which is wrong and can reverse the intended meaning. The safest way to avoid the error is to memorise 'hard' and 'hardly' as two separate, unrelated words rather than as an adjective/adverb pair.
What is the difference between 'late' and 'lately', and 'high' and 'highly'?
'Late' means 'after the expected time' and works as both adjective and adverb: 'I got home late'. 'Lately' means 'recently' and is not related in meaning: 'I haven't seen her lately'. Similarly, 'high' is the literal adverb of physical height: 'the plane flew high above the clouds'. 'Highly' is used figuratively, usually with an emotional or evaluative meaning: 'her work is highly regarded'. In both pairs, the '-ly' form is not simply 'the adverb version' of the shorter word — it carries a distinct, non-literal meaning that has to be learned separately.
When do you use 'very', 'really', and 'a lot'?
'Very' modifies an adjective or another adverb, never a verb directly: 'very interesting', 'very quickly', but never 'very love' or 'very enjoyed'. 'Really' can modify an adjective ('really interesting') or a verb ('really enjoyed the concert'), making it more flexible than 'very'. 'A lot' modifies a verb, typically in positive statements about frequency or degree: 'she talks a lot about her job', never 'a lot interesting'. A frequent error is applying 'very' directly to a verb ('I very enjoyed it') — the fix is either 'really enjoyed it' or 'enjoyed it a lot'.
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