| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [det] [be] [prep] | 6930 |
|
| 2 | [det] could [be] | 1468 |
|
| 3 | could [be] [prep] | 912 |
|
| 4 | [det] could [prep] | 24 |
|
