| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [n mass] [vb mod] be kept | 27 |
|
| 2 | [n mass] can be kept | 9 |
|
| 3 | [n mass] can be kept | 9 |
|
| 4 | [n mass] should be kept | 8 |
|
| 5 | [n mass] should be kept | 8 |
|
| 6 | people [modal v] be kept | 8 |
|
| 7 | fish [modal v] be kept | 6 |
|
| 8 | [n mass] will be kept | 5 |
|
| 9 | [n mass] will be kept | 5 |
|
