| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] be [prep] | 14380 |
|
| 2 | [vb mod] be [prep] | 14380 |
|
| 3 | could be [prep] | 912 |
|
| 4 | could [be] [prep] | 912 |
|
| 5 | could [be] [prep] | 912 |
|
| 6 | could be [prep] | 912 |
|
| 7 | could be [prep] | 912 |
|
