| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could have be [vb pp] [prep] | 509 |
|
| 2 | have be [vb pp] [prep] any | 140 |
|
| 3 | could be [vb pp] [prep] any | 114 |
|
| 4 | could have [vb pp] [prep] any | 25 |
|
| 5 | could have be [prep] any | 9 |
|
