| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] [modal v] have been | 7895 |
|
| 2 | [pers pn] [modal v] have a | 4135 |
|
| 3 | [pers pn] have been a | 2454 |
|
| 4 | [modal v] have been a | 2005 |
|
