| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [vb pp] [pers pn] must [vb infin] | 17 |
|
| 2 | been told [pers pn] must [vb infin] | 15 |
|
| 3 | been [vb pp] he must [vb infin] | 8 |
|
| 4 | been [vb pp] they must [vb infin] | 7 |
|
