| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [adv] [be] [verb] [prep] | 2228 |
|
| 2 | [adv] [be] [verb] [prep] be | 327 |
|
| 3 | could [be] [verb] [prep] be | 152 |
|
| 4 | could [adv] [verb] [prep] be | 126 |
|
