| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [not/n't] prevent him [prep] [v-ing] | 24 |
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| 2 | [vb -s] [not/n't] prevent him [prep] | 5 |
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[vb -s] [not/n't] prevent him [prep] [v-ing] Next page
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