| 不 |
bù néng bù | have to / cannot but |
| 不 |
bù | no; not so / (bound form) not; un- |
| 不 |
bù néng | cannot / must not / should not |
| 能 |
Néng | surname Neng |
| 能 |
néng | can / to be able to / might possibly / ability / (physics) energy |
| 不 |
bù | no; not so / (bound form) not; un- |