| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] have been [vb pp] [prep] | 2823 |
|
| 2 | have been [vb pp] off [prep] | 179 |
|
| 3 | [modal v] have [vb pp] off [prep] | 46 |
|
| 4 | [modal v] have been [vb pp] off | 28 |
|
