| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [verb] [pron] [prep] [v-ing] | 864 |
|
| 2 | [verb] [to-vb] [pron] [prep] [v-ing] | 438 |
|
| 3 | [verb] prevent [pron] [prep] [v-ing] | 74 |
|
| 4 | [verb] to prevent [pron] [prep] [verb] | 32 |
|
