| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [not/n't] prevent him [prep] [v-ing] | 22 |
|
| 2 | do [not/n't] prevent him [prep] [v-ing] | 21 |
|
| 3 | [vb past] [not/n't] prevent him [prep] [v-ing] | 17 |
|
| 4 | did [not/n't] prevent him [prep] [v-ing] | 16 |
|
| 5 | [vb -s] [not/n't] prevent him [prep] [v-ing] | 5 |
|
| 6 | does [not/n't] prevent him [prep] [v-ing] | 5 |
|
| 7 | [not/n't] prevent him [prep] [v-ing] [art] | 8 |
|
| 8 | [not/n't] prevent him [prep] [v-ing] [art] | 8 |
|
| 9 | [not/n't] prevent him [prep] [v-ing] a | 6 |
|
| 10 | [not/n't] prevent him [prep] [v-ing] a | 5 |
|
