tells HOW an action is performed.
quick → quickly, slow → slowly, careful → carefully
not carefully
Does he drive carefully?
Do NOT follow the -ly rule.
work hard, run fast, play well
doesn't play well
Does she speak English well?
| Example / Question | Positive / Short Answer | Negative / Short Answer |
|---|---|---|
| Adjective vs Adverb | She is a careful driver (Adj + Noun) | She drives carefully (Verb + Adv) |
| Irregular: Good | He is a good singer / He sings well | Not: He sings goodly |
| Rule | Base / Standard Form | Applied Form |
|---|---|---|
| Adjective vs Adverb Distinction | Use Adjectives to describe NOUNS (Subject + Be + Adj). Use Adverbs to describe VERBS (Subject + Action Verb + Adv). | She is quiet (adj) vs She talks quietly (adv). |
Describe the manner in which an action occurs.
"Hardly" means "almost not / barely" (e.g. "I hardly know him"). Do not confuse "work hard" (chăm chỉ) with "hardly work" (hầu như không làm)!