| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [not/n't] [verb] it before | 54 |
|
| 2 | [not/n't] [vb pp] it before | 39 |
|
| 3 | n't [verb] it before | 36 |
|
| 4 | not [verb] it before | 17 |
|
| 5 | [not/n't] see it before | 13 |
|
| 6 | [not/n't] [vb infin] it before | 13 |
|
| 7 | [not/n't] do it before | 12 |
|
| 8 | [not/n't] seen it before | 12 |
|
| 9 | [not/n't] done it before | 8 |
|
| 10 | [not/n't] hear it before | 5 |
|
| 11 | [not/n't] heard it before | 5 |
|
