| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | prevent [noun pl] from be [vb pp] | 11 |
|
| 2 | prevent [noun pl] from being [vb pp] | 11 |
|
| 3 | prevent [noun pl] from [being] [vb pp] | 11 |
|
| 4 | to prevent [noun pl] from [be] [vb pp] | 5 |
|
