| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] not been [prep] | 228 |
|
| 2 | who [vb base] been [prep] | 142 |
|
| 3 | who [vb base] not been | 68 |
|
| 4 | who [vb base] not [prep] | 16 |
|
