| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] it [vb mod] [verb] | 336 |
|
| 2 | whether it [vb mod] [verb] | 216 |
|
| 3 | [prep] whether it [vb mod] | 63 |
|
| 4 | [prep] whether it [verb] | 62 |
|
