| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | to prevent [pron] [prep] being [verb] | 11 |
|
| 2 | to prevent [pron] from being [verb] | 11 |
|
| 3 | to prevent [pron] [prep] being [vb pp] | 11 |
|
| 4 | to prevent [pron] from being [verb] | 11 |
|
| 5 | to prevent [pers pn] [prep] being [verb] | 10 |
|
