| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] had [be] prevented from | 8 |
|
| 2 | [pers pn] had [be] prevented from | 6 |
|
| 3 | had [be] prevented from [verb] | 12 |
|
| 4 | had [be] prevented from [v-ing] | 12 |
|
