| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] [prep] [v-ing] | 5957 |
|
| 2 | prevent [pers pn] [prep] | 762 |
|
| 3 | prevent [prep] [v-ing] | 355 |
|
| 4 | prevent [pers pn] [v-ing] | 348 |
|
