| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [v-ing] be | 1060 |
|
| 2 | [prep] [v-ing] be | 1060 |
|
| 3 | before [verb] be | 12 |
|
| 4 | before [v-ing] [be] | 12 |
|
| 5 | before [v-ing] be | 12 |
|
