| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] must [verb] [been] | 1553 |
|
| 2 | [pers pn] must [verb] some | 178 |
|
| 3 | must [verb] [been] some | 43 |
|
| 4 | [pers pn] [verb] [been] some | 15 |
|
