| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] must have been | 1552 |
|
| 2 | [pers pn] must have some | 74 |
|
| 3 | must have been some | 43 |
|
| 4 | [pers pn] have been some | 15 |
|
