| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] [not/n't] have [been] [art] [det] | 7 |
|
| 2 | [modal v] [not/n't] have [been] [art] [det] | 7 |
|
| 3 | would [not/n't] have [been] [art] [det] | 5 |
|
| 4 | would [not/n't] have [been] [art] [det] | 5 |
|
