| Rule | Example | |
|---|---|---|
| Formation | adj + -ly (most cases) | slow → slowly, careful → carefully |
| Irregular | good→well · fast→fast · hard→hard | she sings well, runs fast |
| Position | after verb or after object | speaks English well |
| Trap | hardly ≠ hard · lately ≠ late | I hardly slept ≠ I worked hard |