| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [det] [modal v] have been [verb] | 210 |
|
| 2 | [Wh adv] [det] have been [verb] | 40 |
|
| 3 | [Wh adv] [det] [modal v] have [verb] | 17 |
|
| 4 | [Wh adv] [det] [modal v] have been | 15 |
|
