| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] not been [verb] [adv prt] by | 10 |
|
| 2 | [vb past] not been [vb pp] [adv prt] by | 10 |
|
| 3 | had not been [verb] [adv prt] by | 10 |
|
| 4 | [vb past] not been [verb] [adv prt] by | 8 |
|
