| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] have been a | 1695 |
|
| 2 | [modal v] have [adv] been | 130 |
|
| 3 | [modal v] have [adv] a | 76 |
|
| 4 | have [adv] been a | 11 |
|
