| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be preventing [pers pn] from [v-ing] | 13 |
|
| 2 | be preventing [pers pn] [prep] [v-ing] | 13 |
|
| 3 | be preventing [pers pn] from [v-ing] | 13 |
|
| 4 | be preventing them [prep] [v-ing] | 7 |
|
