| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [be] [vb pp] [prep] [art] | 2751 |
|
| 2 | [be] [vb pp] [prep] [be] [art] | 203 |
|
| 3 | could [be] [vb pp] [prep] [be] | 148 |
|
