At a glance
～かしら means "I wonder..." and shows that the speaker is unsure about something. It is casual and sounds soft. It is traditionally associated with women's speech.
[Plain form] + かしら
明日は雨かしら。 I wonder if it will rain tomorrow.
How to form it
かしら attaches to the plain (casual) form. With nouns and な-adjectives, drop だ in the present.
| Attaches to | Present | Negative | Past |
|---|---|---|---|
| Verb | 来るかしら | 来ないかしら | 来たかしら |
| い-adjective | 寒いかしら | 寒くないかしら | 寒かったかしら |
| な-adjective | 元気かしら | 元気じゃないかしら | 元気だったかしら |
| Noun | 雨かしら | 雨じゃないかしら | 雨だったかしら |
Register: casual. It is used with friends and family, or when talking to yourself.