| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had not be [verb] for a | 9 |
|
| 2 | had not been [verb] for a | 9 |
|
| 3 | had not [been] [verb] for a | 9 |
|
| 4 | had not [be] [vb pp] for a | 8 |
|
