肯定文:
I can play games.
I cannot play games.
not をつける| 助動詞 | 否定形 | 短縮形 | 例 |
|---|---|---|---|
can |
cannot |
can't |
I can't play games. |
will |
will not |
won't |
I won't play games. |
must |
must not |
mustn't |
I mustn't play games. |
should |
should not |
shouldn't |
I shouldn't play games. |
may |
may not |
— | I may not play games. |
must not = ～してはいけない（禁止）don't have to = ～する必要はない（不必要）| 肯定文 | 否定文 |
|---|---|
| I can play games. | I (cannot / can’t) play games. |
| I must go. | I (must not / mustn’t) go. |
| I will come. | I (will not / won’t) come. |
| I should stay. | I (should not / shouldn’t) stay. |
| I may leave. | I (may not) leave. |
| 日本語 | 英語 |
|---|---|
| 私は泳ぐことができない。 | I cannot swim. |
| 私は行ってはいけない。 | I must not go. |
| 私は今日勉強する必要はない。 | I don’t have to study today. |