| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [not/n't] [verb] [pron] [prep] [verb] | 192 |
|
| 2 | [verb] [adv] prevent [pron] [prep] [verb] | 47 |
|
| 3 | [verb] [not/n't] prevent [pron] [prep] [verb] | 41 |
|
