| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] have been [adj] to [det] | 20 |
|
| 2 | [modal v] have been [adj] to [det] | 20 |
|
| 3 | [modal v] have been [verb] to [det] | 16 |
|
| 4 | [modal v] have been [vb pp] to [det] | 16 |
|
