| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [v-ing] [conj] it | 394 |
|
| 2 | [prep] [v-ing] if [pron] | 133 |
|
| 3 | [prep] [v-ing] [subord] it | 120 |
|
| 4 | [prep] [verb] if it | 22 |
|
| 5 | [prep] [v-ing] if it | 18 |
|
