| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] [noun pl] that prevent [pron] [prep] | 6 |
|
| 2 | [adj] [noun pl] that prevent [pron] [prep] | 5 |
|
| 3 | [noun pl] that prevent [pron] [prep] [verb] | 14 |
|
| 4 | [noun pl] that prevent [pron] [prep] [v-ing] | 14 |
|
