| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | can [be] [verb] | 39872 |
|
| 2 | can [be] [vb pp] | 39670 |
|
| 3 | [modal v] [be] kept | 824 |
|
| 4 | can [be] kept | 120 |
|
| 5 | can [be] keep | 120 |
|
