| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] have been [prep] | 1264 |
|
| 2 | [Wh det] [modal v] have been | 1092 |
|
| 3 | [Wh det] have been [prep] | 253 |
|
| 4 | [Wh det] [modal v] have [prep] | 98 |
|
