| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [verb] [adv] [conj] prevent | 5 |
|
| 2 | [be] [verb] [adv] [conj] prevent | 5 |
|
| 3 | [verb] [adv] [conj] prevent [art] | 9 |
|
| 4 | [verb] [adv] [conj] prevent [art] | 9 |
|
| 5 | [verb] [adv] [conj] prevent the | 7 |
|
| 6 | [verb] [adv] [conj] prevent the | 7 |
|
