| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could have been [verb] [prep] [det] | 43 |
|
| 2 | could have be [vb pp] [prep] [det] | 40 |
|
| 3 | could have be [verb] [prep] any | 15 |
|
| 4 | could have be [verb] by [det] | 11 |
|
| 5 | could have be [verb] at [det] | 9 |
|
| 6 | could have be [verb] in [det] | 6 |
|
| 7 | could have be [verb] [prep] such | 5 |
|
| 8 | could have be [verb] for [det] | 5 |
|
