| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] not [been] [verb] | 1443 |
|
| 2 | [vb past] not [verb] a | 1204 |
|
| 3 | [vb past] [been] [verb] a | 650 |
|
| 4 | [vb past] not [been] a | 81 |
|
| 5 | not [been] [verb] a | 32 |
|
