| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have not [been] [vb pp] | 3471 |
|
| 2 | have [been] [vb pp] a | 1070 |
|
| 3 | have not [vb pp] a | 588 |
|
| 4 | have not [been] a | 179 |
|
| 5 | not [been] [vb pp] a | 26 |
|
