名詞・形容詞・副詞 全20語
まぎらわしい対：いつも複数形で使う名詞
この2つは混同しやすいため、必ず対にして確認してください。
| 語 | 正しい形 | よくある誤り |
|---|---|---|
| information | a piece of information | an information / informations |
| advice | a piece of advice | an advice / advices |
| equipment | a piece of equipment | an equipment / equipments |
| furniture | a piece of furniture | a furniture / furnitures |
| luggage | two pieces of luggage | two luggages |
| evidence | a piece of evidence | an evidence / evidences |
| research | a piece of research / a study | a research / researches |
| progress | make progress | make a progress / progresses |
| damage | serious damage | a damage / damages（法律用語では別） |
| knowledge | a knowledge of history | knowledges |
| harm | do harm to ~ | a harm / harms |
| wealth | great wealth | a wealth / wealths |
| welfare | the welfare of children | welfares |
| insurance | an insurance policy | an insurance / insurances |
| consent | written consent | a consent / consents |
| heritage | cultural heritage | heritages |
| integrity | professional integrity | an integrity |
| fatigue | driver fatigue | a fatigue / fatigues |
| labor | cheap labor | a labor / labors |
| literature | existing literature | literatures |