| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | not [been] [verb] | 3931 |
|
| 2 | not [been] [vb pp] | 3689 |
|
| 3 | [adv] [been] found | 273 |
|
| 4 | not [be] found | 165 |
|
| 5 | [not/n't] [been] found | 58 |
|
| 6 | not [been] found | 58 |
|
| 7 | not [been] find | 51 |
|
