| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [vb infin] been [vb pp] for | 234 |
|
| 2 | [modal v] [vb infin] [vb pp] for some | 10 |
|
| 3 | [vb infin] been [vb pp] for some | 6 |
|
