| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | that have not been [verb] in | 16 |
|
| 2 | that have not been [vb pp] in | 16 |
|
| 3 | that had not been [verb] in | 7 |
|
| 4 | that has not been [verb] in | 5 |
|
