| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | he [modal v] have been [verb] | 483 |
|
| 2 | [pron] could have been [verb] | 405 |
|
| 3 | [pers pn] could have been [verb] | 303 |
|
| 4 | he could have been [verb] | 72 |
|
| 5 | he could have [been] [verb] | 72 |
|
| 6 | he could [verb] been [verb] | 72 |
|
| 7 | he could have [be] [verb] | 72 |
|
| 8 | he could have be [verb] | 72 |
|
