| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] be [verb] | 90335 |
|
| 2 | [prep] be [vb pp] | 82473 |
|
| 3 | [prep] be kept | 480 |
|
| 4 | [prep] be keep | 480 |
|
| 5 | [prep] [be] kept | 480 |
|
| 6 | [prep] be kept | 462 |
|
| 7 | [prep] [be] kept | 460 |
|
