| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which prevents they [prep] [verb] | 7 |
|
| 2 | [Wh det] prevents they [prep] [verb] | 7 |
|
| 3 | [noun] prevents they [prep] [verb] | 7 |
|
| 4 | [pron] prevents they [prep] [verb] | 7 |
|
| 5 | which prevents they [prep] [verb] | 7 |
|
| 6 | [noun sg] prevents they [prep] [verb] | 5 |
|
| 7 | prevents they [prep] [verb] [art] | 5 |
|
| 8 | prevents they [prep] [verb] [art] | 5 |
|
