| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | he [modal v] have been [verb] | 483 |
|
| 2 | [pron] must have been [verb] | 371 |
|
| 3 | [pers pn] must have been [verb] | 336 |
|
| 4 | he must have been [verb] | 86 |
|
| 5 | he must [verb] been [verb] | 86 |
|
| 6 | he must have be [verb] | 86 |
|
| 7 | he must have [be] [verb] | 86 |
|
| 8 | he must have [been] [verb] | 86 |
|
