Good vs Well (Confusable Pairs)
π Teaching an 8β18-year-old? Read the young-learner edition β
Picture the scene. You've just wrapped up a presentation you're quietly pleased with, and your manager catches you in the corridor: "How'd it go?" Out it comes β "I did good" β and there's the look. Tiny, fleeting, but unmistakable. You're not sure if it's the phrase or just British workplace awkwardness, but something landed slightly wrong.
Here's the thing. This little pair β good and well β trips up confident, articulate adults every single day, usually in exactly those small stakes-y moments: a reply to the boss, a line in a covering letter [US: cover letter], a comment you're about to post under your own name. And it's not just good and well. There's a cluster of these: bad/badly, real/really, slow/slowly, near/nearly. They all run on the same underlying logic, and once you've got that logic, the guessing stops.
Let's be honest β nobody sat most of us down and explained this properly at school. So we'll do it now, from the ground up. And you're allowed to relearn it as an adult without a shred of apology.
Before you read on, here's where we're heading. By the end of this article, you'll be able to: - Distinguish an adjective (describes a thing) from an adverb (describes an action). - Use good and well correctly β and explain why "it went good" reads as careless. - Handle bad/badly, real/really, slow/slowly, near/nearly with confidence in emails, applications, and conversation. - Recognise [US: Recognize] linking verbs and know why they take an adjective, not an adverb. - Understand why "I feel good" is perfectly correct β and when "I feel well" is the better choice.
Beginner (Foundation): Things get adjectives, actions get adverbs
One idea does most of the heavy lifting here, so let's nail it first.
An adjective describes a thing β a person, object, or idea. In grammar terms, a noun. It tells you what something is like.
- a good report
- a strong candidate
- a quick reply
An adverb describes an action β how something is done. Usually it modifies a verb, a doing word.
- She writes well.
- He replied quickly.
- They worked hard.
You'll notice most adverbs are just the adjective plus -ly: quick β quickly, slow β slowly, careful β carefully. That -ly ending is your single most reliable signal that a word is describing an action.
Good and well are the awkward exception, because good doesn't get an -ly even when your ear expects one:
- Good is the adjective β it describes a thing: a good idea, a good manager.
- Well is the adverb β it describes an action: She presented well, He negotiated well.
So "a good presentation" is correct (presentation = a thing), and "she presented well" is correct too (presenting = an action). Same event, two different words, depending on what you're describing.
One everyday exception belongs on the foundation layer: health.
- "I hope you're well." (healthy β an adjective use of well)
- "I don't feel well this morning."
That's why the polite email opener I hope this finds you well works. Here well doesn't mean "you perform healthily"; it means you're in good shape. More on the feel good / feel well fork shortly.
You don't need a linguistics degree for any of this. Just ask: Am I labelling a thing, or describing how something was done? Thing β good. How β well.
Quick recap: - Adjectives describe things: a good report, a strong candidate. - Adverbs describe actions, usually ending in -ly: replied quickly, worked hard. - Good = adjective; well = adverb. - Well can also be an adjective meaning "healthy": I hope you're well. - The -ly ending is a strong clue you're looking at an adverb.
Intermediate (Development): The working rule, and the rest of the family
Now for the version you'll actually use at your desk.
When you did the work β ran the meeting, wrote the report, closed the deal β you performed an action. Actions take adverbs. So:
- β The project went well.
- β The project went good.
- β I did well in the interview.
- β I did good in the interview.
"I did good" technically means you did good deeds β charity work, a kind act. Handy when that's what you mean; wrong when you're talking about performance.
The same distinction sorts out the whole confusable family. Decide whether you're describing a thing or an action, then pick the matching word.
Bad vs badly. Bad is the adjective; badly is the adverb. - It was a bad quarter. (describes the quarter) - The launch went badly. (describes how it went)
Real vs really. Real is the adjective; really is the adverb β and this pair is a common tell in professional writing. - β I'm really pleased with the results. (really modifies "pleased") - β I'm real pleased with the results. (casual/regional speech β avoid in writing) - β That's a real concern. (here "real" describes "concern," a thing β correct)
Slow vs slowly. Slow is the adjective; slowly is the adverb. - a slow start (describes the start) - The market recovered slowly. (describes how it recovered)
Road signs say "SLOW," which is an accepted shorthand β but in a report, "the rollout proceeded slowly" is the correct form.
Near vs nearly. These two don't share a meaning, which is why swapping them creates real confusion. - We're near a decision. (near = close) - We nearly missed the deadline. (nearly = almost)
"We near missed the deadline" isn't just informal β it doesn't quite parse. Keep them separate.
Common Mistake: Writing "The presentation went really good" in an email to a client or manager. "Good" should be "well" β presenting is an action. Fixed: "The presentation went really well." ("Really" is correct because it's modifying "well.")
Pro-Tip: When you're unsure, ask one question: Am I describing a thing, or how something was done? Thing β adjective (good, bad, slow, real). How it was done β adverb (well, badly, slowly, really).
Quick recap: - Describing an action? Adverb: went well, performed badly, recovered slowly. - Describing a thing? Adjective: a good idea, a bad quarter, a slow start. - Really modifies actions and adjectives; real describes things. - Near = close; nearly = almost β never interchangeable.
Advanced (Mastery): Linking verbs, and why "I feel good" is right
This is where the neat rule needs a caveat β and where a lot of well-meaning "corrections" go wrong.
Not every verb describes an action. Some verbs simply link the subject to a description of it, without any doing involved. These are linking verbs. The workhorse is be (is, am, are, was, were), joined by a set of sense-and-state verbs:
seem, become, feel, look, sound, taste, smell, appear, remain.
(There's a dedicated article on these β see H3.1 at the end.)
Crucially: linking verbs take an adjective, not an adverb, because the describing word actually refers back to the subject β a thing β not to any action.
- The coffee tastes good. (good describes the coffee)
- You look tired. (tired describes you)
- The proposal seems strong. (strong describes the proposal)
This is precisely why "I feel good" is correct. Feel is a linking verb here, so it takes the adjective good, describing your state or mood. People sometimes "upgrade" this to "I feel well" thinking it's more refined β but grammatically, "I feel good" was never wrong.
That said, "I feel well" is also correct β it just means something different. In that sentence, well is an adjective meaning healthy, not ill. So:
- I feel good. = I'm in good spirits, things are fine.
- I feel well. = I'm healthy, I'm not unwell.
Both are standard. Choose by your meaning, not by which one sounds posher. Well as an adjective (meaning "healthy") is the one place well legitimately describes a thing rather than an action.
The genuinely tricky part is that some verbs work as both linking and action verbs, depending on the sentence. Use the swap-with-is test: replace the verb with is or was, and if the sentence still makes sense, it's a linking verb β so use the adjective.
- The proposal looks strong β The proposal is strong. β Still makes sense β linking verb β adjective (strong). β
- She looked carefully at the figures β She is carefully at the figures. β Nonsense β action verb β adverb (carefully). β
The same verb can flip its job depending on your meaning:
- "She looked confident in the interview." (linking β appearance β adjective)
- "She looked carefully through the contract." (action β manner β adverb)
- "He felt anxious before the pitch." (linking β state β adjective)
- "He felt gently along the wall for the switch." (action β how his hands moved β adverb)
That diagnosis β am I describing the subject, or how the verb is performed? β is far more useful than memorising a list, because it travels with you into unfamiliar verbs too (remain, prove, stay, grow all have linking uses).
And a register note, because this matters in professional life. Even where casual speech happily tolerates "it went good" or "I'm doing real good," written communication doesn't. A covering letter that says "I performed good under pressure" quietly undercuts the very competence it's claiming. The adverb β performed well β signals care, and care is exactly what a reader is scanning for. That's not snobbery. It's choosing the instrument that suits the room: a Slack message to a colleague you know well can flex; a client proposal, an appraisal, or a job application shouldn't.
Pro-Tip: The is/was swap test settles almost every case. If "The soup is good" makes sense, then "The soup tastes good" is correct β linking verb, adjective. If the swap collapses, you've got an action verb and you need the adverb.
Common Mistake: Defaulting to "I feel badly" because it sounds more proper. In standard English that suggests something's wrong with your sense of touch, not that you're guilty or sorry. For emotion and conscience, use "I feel bad about that." And don't "correct" a colleague's "I feel good" either β feel is a linking verb, so good is right. Reserve well for when you specifically mean not ill.
Quick recap: - Linking verbs (be, seem, feel, look, taste, sound, become, remainβ¦) take an adjective. - "The coffee tastes good," "You look tired" β the adjective describes the subject. - I feel good = in good spirits; I feel well = healthy. Both correct. - Some verbs flip: look confident (linking) vs look carefully (action). - In writing that represents you, choose the standard adverb β it reads as competent and careful.
UK vs US Usage
Reassuringly, the underlying grammar is identical on both sides of the Atlantic. Adjectives modify nouns and sit after linking verbs; adverbs of manner modify action verbs. Where the UK and US differ is in habit and tolerance, not in rival rules.
American English β particularly in casual speech, advertising, and everyday conversation β is noticeably more comfortable using the bare adjective where standard grammar wants an adverb: "drive safe," "we did real good," "come quick." Some of these are so established in US usage that they barely register as informal to American ears. Even so, they stay colloquial; you won't see them in a well-edited American report or cover letter.
British English treats the same constructions as more conspicuously slangy, so they stand out more sharply in UK writing and get corrected more readily. If you're writing for a British reader or organisation, use the full adverb without exception: really, quickly, safely, well.
A few specifics worth knowing:
- "I'm good" as a reply to "How are you?" is universal now, but it's slightly more entrenched in American English. In formal British contexts β especially more traditional workplaces β you'll still hear "I'm very well, thank you," where well is the health adjective.
- "Real" as a booster ("real good," "real quick") rides higher in informal US speech than UK speech. Careful writing on either side prefers really (or a cleaner synonym: genuinely, extremely, quite).
- "Nearly" for "almost" is shared by both varieties. Oral near + participle ("I near quit") is storytelling, not standard business prose anywhere.
One small spelling note in passing: none of the words in this article change spelling between the two varieties β there's no colour [US: color]-style swap here. The difference is purely about how relaxed each variety is with the casual form.
The practical upshot: the rule you've learned is safe everywhere. Follow it, and your writing works for readers in London, Chicago, or anywhere in between.
Key Takeaways
- Adjectives describe things; adverbs describe actions and often end in -ly.
- Good = adjective; well = adverb. A good report; she presented well.
- The pattern extends to bad/badly and slow/slowly; really modifies actions and adjectives, real describes things.
- Near = close; nearly = almost β keep them distinct.
- Linking verbs (be, feel, look, taste, seemβ¦) take an adjective: tastes good, seems strong.
- I feel good (in good spirits) and I feel well (healthy) are both correct β pick by meaning.
- In any writing that represents you professionally, use the standard adverb.
Check Your Understanding
- Choose the right word: "The interview went really ___." (good / well)
- Choose the right word: "This proposal looks ___." (good / well) β and why?
- Fix this sentence: "I work good under pressure."
- Explain the difference between "We're near a decision" and "We nearly reached a decision."
- True or false: telling someone "I feel good" is grammatically incorrect.
Answer key: 1. Well β it describes the action (how the interview went). 2. Good β looks is a linking verb here, so it takes the adjective, describing the proposal. 3. "I work well under pressure." ("Well" describes the action of working β and it reads far more professionally.) 4. Near means close to (position); nearly means almost (you didn't quite get there). 5. False β it's correct. Feel is a linking verb, so good is the right adjective. (I feel well is also correct but means "healthy.")
Internal Links (Related Articles)
- H4.1 β Adjectives: what they are and how they modify nouns
- H4.3 β Adverbs: what they are and how to form them
- H4.4 β Flat adverbs: fast, hard, late, slow and friends
- H4.6 β More confusable adjective/adverb pairs
- H3.1 β Linking verbs (be, seem, feel, look) and their complements