| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] it [prep] [verb] [adv prt] | 52 |
|
| 2 | [to-vb] it [prep] [verb] [adv prt] | 20 |
|
| 3 | to prevent [pron] [prep] [verb] [adv prt] | 13 |
|
| 4 | to prevent it [prep] [verb] [adv] | 10 |
|
| 5 | prevent it [prep] [verb] [adv prt] | 10 |
|
| 6 | to prevent it [prep] [verb] [adv prt] | 7 |
|
