| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [vb infin] [vb pp] [pers pn] was | 41 |
|
| 2 | [vb infin] [vb pp] [pers pn] was a | 33 |
|
| 3 | must [vb infin] [vb pp] [pers pn] a | 18 |
|
| 4 | must [vb infin] [pers pn] was a | 11 |
|
