| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [v-ing] [conj] it [verb] | 93 |
|
| 2 | [prep] [v-ing] whether [pron] [verb] | 32 |
|
| 3 | [prep] [verb] whether it [verb] | 9 |
|
| 4 | [prep] [v-ing] whether it [verb] | 9 |
|
