| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | prevent [pron] [prep] [verb] | 697 |
|
| 2 | have [pron] [prep] [verb] | 54 |
|
| 3 | have prevent [pron] [prep] | 46 |
|
| 4 | have prevent [pron] [verb] | 12 |
|
