Started, Not Finished
かける on a verb stem means the action began but did not complete.
- 読みかけの本(a book I've started and not finished)
Three Forms
| Form | Use |
|---|---|
| 言いかける | start to say |
| 言いかけた | started to say (and stopped) |
| 読みかけの本 | before a noun |
The "On the Verge" Sense
With verbs that have no gradual middle, かける means the thing nearly happened:
- 死にかけた。(I nearly died.)
- 忘れかけていた。(I'd almost forgotten.)
Against そうになる and きれない
| Pattern | Sense |
|---|---|
| かける | began and stopped partway |
| そうになる | almost happened, but didn't start |
| きれない | couldn't get through all of it |
転びそうになった means you nearly fell and didn't. 食べかけ means you started eating and stopped.
Not the Independent Verb かける
掛ける on its own means to hang, to sit down, to call, to pour — an entirely separate high-frequency verb. Only the bound form after a ます stem is this pattern.