| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [adv] be [adj] | 13871 |
|
| 2 | [modal v] be kept [adj] | 162 |
|
| 3 | [modal v] [adv] be kept | 98 |
|
| 4 | [adv] be kept [adj] | 25 |
|
