| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] have been [adj] at | 38 |
|
| 2 | [modal v] have been at [det] | 13 |
|
| 3 | have been [adj] at [det] | 10 |
|
| 4 | [modal v] have been [adj] [det] | 9 |
|
