| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] could be [verb] [prep] | 1637 |
|
| 2 | could be [verb] [prep] [be] | 152 |
|
| 3 | [pron] could [verb] [prep] [be] | 69 |
|
| 4 | [pron] be [verb] [prep] [be] | 7 |
|
