| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] be kept [adj] | 10 |
|
| 2 | not be kept [adj] | 6 |
|
| 3 | not be kept [adj] | 6 |
|
| 4 | [not/n't] be kept [adj] | 6 |
|
