| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [pron] [prep] [v-ing] [adv] | 769 |
|
| 2 | [vb past] [pron] [prep] [v-ing] [adv] | 187 |
|
| 3 | prevent [pron] [prep] [v-ing] [adv] | 126 |
|
| 4 | prevented [pron] [prep] [verb] [adv] | 20 |
|
