| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] [modal v] have been [adj] | 1949 |
|
| 2 | [pron] must have been [adj] | 445 |
|
| 3 | [pers pn] must [verb] been [adj] | 323 |
|
| 4 | [pers pn] must have [be] [adj] | 322 |
|
| 5 | [pers pn] must have [been] [adj] | 322 |
|
| 6 | [pers pn] must have be [adj] | 322 |
|
