Adverbs of Manner vs Adjectives: How to Tell the Difference

Introduction

Do you sometimes wonder if you should say “drive careful” or “drive carefully”? This common confusion is all about the difference between adjectives and adverbs of manner. Mastering this will make your English sound much more natural and accurate.

What Is the Difference Between Adverbs of Manner and Adjectives?

In simple terms, an adjective describes a noun (a person, place, or thing). An adverb of manner describes a verb (an action)—it tells us how something is done. Think of it this way: adjectives answer “What kind?” while adverbs of manner answer “How?”

Rules

1. Adjectives modify nouns. They tell us about the quality, state, or nature of a person, place, or thing.
2. Adverbs of manner modify verbs. They describe how an action is performed.
3. Adverbs of manner are often formed by adding “-ly” to an adjective (e.g., quick → quickly).
4. Linking verbs (like be, seem, become, feel, look, sound) are followed by adjectives, not adverbs. These verbs describe a state, not an action.
5. Some words can be both adjectives and adverbs without changing form (e.g., fast, hard, early).

How to Use It

Follow these steps to decide whether to use an adjective or an adverb of manner.

Step 1: Identify the word you want to describe. Find the main subject and verb in your sentence.

Step 2: Ask the right question.

• If the word you are describing is a noun, ask: “What kind of [noun] is it?” The answer will be an adjective.
• If the word you are describing is a verb, ask: “How is the action done?” The answer will be an adverb of manner.

Step 3: Check for linking verbs. If your main verb is a linking verb (like is, feels, seems, looks, sounds), you need an adjective to describe the subject, not an adverb.

Step 4: Apply the correct form. Remember the “-ly” rule for most adverbs of manner, but watch out for irregular forms like “well” (the adverb for “good”).

Examples in Sentences

• She is a quick learner. (Adjective ‘quick’ describes the noun ‘learner.’)
• She learns quickly. (Adverb ‘quickly’ describes the verb ‘learns.’)
• He gave a polite answer. (Adjective ‘polite’ describes the noun ‘answer.’)
• He answered politely. (Adverb ‘politely’ describes the verb ‘answered.’)
• The music sounds beautiful. (Adjective ‘beautiful’ after linking verb ‘sounds’ describes ‘music.’)
• The bird sang beautifully. (Adverb ‘beautifully’ describes the verb ‘sang.’)
• We had an early breakfast. (Adjective ‘early’ describes the noun ‘breakfast.’)
• We woke up early. (Here, ‘early’ is an adverb describing the verb ‘woke up.’)
• She feels bad about the mistake. (Adjective ‘bad’ after linking verb ‘feels’ describes ‘she.’)
• He played badly in the match. (Adverb ‘badly’ describes the verb ‘played.’)
• It was an easy test. (Adjective ‘easy’ describes the noun ‘test.’)
• We passed the test easily. (Adverb ‘easily’ describes the verb ‘passed.’)

Common Mistakes

Let’s look at some frequent errors and how to correct them.

Mistake 1: Using an adjective to describe a verb.
❌ She drives very careful.
✅ She drives very carefully. (‘Carefully’ describes how she drives.)

Mistake 2: Using an adverb after a linking verb.
❌ The soup smells deliciously.
✅ The soup smells delicious. (‘Delicious’ describes the soup, not the action of smelling.)

Mistake 3: Confusing ‘good’ (adjective) and ‘well’ (adverb).
❌ He plays piano really good.
✅ He plays piano really well. (‘Well’ describes how he plays.)
✅ He is a good pianist. (‘Good’ describes the noun ‘pianist.’)

Mistake 4: Forgetting irregular adverbs.
❌ He works very hardly.
✅ He works very hard. (‘Hard’ is both an adjective and an adverb. ‘Hardly’ means ‘almost not.’)

Quick Summary

• Adjectives describe nouns (things, people, places).
• Adverbs of Manner describe verbs (actions) and answer “How?”
• Most adverbs of manner are made by adding -ly to the adjective.
• Use an adjective, not an adverb, after linking verbs (be, seem, feel, look, sound, taste, smell).
• Watch out for irregular forms like good/well, hard/hard, fast/fast.

Practice Exercises

Choose the correct word (adjective or adverb) to complete each sentence.

1. She spoke in a very _____ (quiet / quietly) voice.
2. You must handle this glass _____ (careful / carefully).
3. After the long run, he felt _____ (extreme / extremely) tired.
4. The children were playing _____ (happy / happily) in the garden.
5. That new song sounds _____ (amazing / amazingly).

Answers:

1. quiet (adjective describing the noun ‘voice’)
2. carefully (adverb describing the verb ‘handle’)
3. extremely (adverb describing the adjective ‘tired’)
4. happily (adverb describing the verb ‘playing’)
5. amazing (adjective after linking verb ‘sounds’ describing ‘song’)

Conclusion

Understanding the difference between adjectives and adverbs of manner is a powerful step towards clearer and more correct English. Remember to ask “What is being described?”—a noun or a verb? With a little practice, this will soon become second nature.

FAQ

Q1: Is ‘friendly’ an adjective or an adverb?
A: ‘Friendly’ is an adjective (e.g., a friendly person). Even though it ends in ‘-ly’, it is not an adverb. The adverb form is ‘in a friendly way’ (e.g., He smiled in a friendly way).

Q2: What about words like ‘fast’ that don’t change?
A: Some words, like ‘fast’, ‘hard’, ‘early’, and ‘late’, can be used as both adjectives and adverbs without changing form. You must look at their job in the sentence. Example: A fast car (adjective). He runs fast (adverb).

Q3: Why do we say “I feel bad” and not “I feel badly”?
A: ‘Feel’ is often a linking verb. When you say “I feel bad,” you are describing your state or emotion (the subject ‘I’). “I feel badly” would mean your sense of touch is not working well, which is a different, less common meaning.

Q4: Can an adverb describe an adjective?
A: Yes! Adverbs can modify adjectives to show degree. For example, in the phrase “extremely hot weather,” the adverb ‘extremely’ modifies the adjective ‘hot’ to tell us how hot it is. This is different from an adverb of manner, which specifically modifies a verb.