| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] must have [been] | 1552 |
|
| 2 | [pers pn] have [been] [noun] | 657 |
|
| 3 | [pers pn] must have [noun] | 186 |
|
| 4 | must have [been] [noun] | 120 |
|
