| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [adv] have been | 2481 |
|
| 2 | [modal v] have been [prep] | 1264 |
|
| 3 | [modal v] [adv] have [prep] | 334 |
|
| 4 | [adv] have been [prep] | 285 |
|
