| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [verb] not [verb] | 10087 |
|
| 2 | it [verb] not [vb infin] | 9186 |
|
| 3 | [pron] [verb] not happen | 190 |
|
| 4 | it [verb] not happen | 177 |
|
| 5 | it [verb] [adv] happen | 137 |
|
