| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] if it [verb] | 421 |
|
| 2 | [v-ing] [prep] it [verb] | 163 |
|
| 3 | [v-ing] [prep] if it | 31 |
|
| 4 | [v-ing] if it [verb] | 27 |
|
| 5 | [v-ing] [prep] if [verb] | 14 |
|
