| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | before [conj] [prep] [v-ing] | 30 |
|
| 2 | before [coord] [prep] [v-ing] | 29 |
|
| 3 | [prep] or [prep] [v-ing] | 26 |
|
| 4 | before or [prep] [v-ing] | 11 |
|
| 5 | before or [prep] [verb] | 11 |
|
| 6 | before or [prep] [v-ing] | 11 |
|
