| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | only be [verb] | 2723 |
|
| 2 | only be [vb pp] | 2648 |
|
| 3 | [adv] be kept | 107 |
|
| 4 | [adv] be kept | 70 |
|
| 5 | only be kept | 10 |
|
| 6 | only [be] kept | 10 |
|
| 7 | only [be] kept | 9 |
|
| 8 | only be kept | 9 |
|
| 9 | only be keep | 9 |
|
