| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] have [been] [prep] | 1264 |
|
| 2 | [modal v] n't have [been] | 624 |
|
| 3 | [modal v] n't have [prep] | 60 |
|
| 4 | n't have [been] [prep] | 43 |
|
