| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | whether it [is] [prep] [v-ing] | 19 |
|
| 2 | whether it [is] [prep] [verb] | 19 |
|
| 3 | whether it [is] worth [verb] | 15 |
|
| 4 | whether it 's [prep] [verb] | 13 |
|
| 5 | whether it is [prep] [verb] | 6 |
|
