| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [not/n't] [verb] | 211077 |
|
| 2 | [verb] [not/n't] [vb infin] | 181415 |
|
| 3 | [verb] [not/n't] happen | 641 |
|
| 4 | [verb] [adv] happen | 497 |
|
