| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could have be [vb pp] | 1042 |
|
| 2 | could also be [vb pp] | 278 |
|
| 3 | also have be [vb pp] | 81 |
|
| 4 | could also have be | 19 |
|
| 5 | could also have [vb pp] | 19 |
|
