| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [prep] if | 4334 |
|
| 2 | [v-ing] [prep] [conj] | 1747 |
|
| 3 | [v-ing] [prep] [subord] | 811 |
|
| 4 | [v-ing] [prep] if | 331 |
|
