Achsah/Be動詞與助動詞
< Achsah
問是非問題
表達否定
表達態度
常用助動詞
基本助動詞
- be am are is / was were / been
- do / does / did
- have / has / had
情感態度助動詞
- will / would
- can / could
- may / might
- shall / should
- must
- ought to
助動詞用法差異表
| Be | Do | Have | 情態 | |
|---|---|---|---|---|
| 時間變化 | ✅ | ✅ | ✅ | ❌ |
| 主詞三單變化 | ✅ | ✅ | ✅ | ❌ |
| 接原形動詞 | ❌ | ✅ | ❌ | ✅ |
| 接過去分詞 | ✅ | ❌ | ✅ | ❌ |
| 接 Ving | ✅ | ❌ | ❌ | ❌ |
| 疑問句開頭 | ✅ | ✅ | ✅ | ✅ |
| 否定句 not 前 | ✅ | ✅ | ✅ | ✅ |