| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] it [is] [to-vb] | 409 |
|
| 2 | [subord] it [is] [to-vb] | 325 |
|
| 3 | whether it [is] [verb] | 184 |
|
| 4 | whether it [be] [to-vb] | 16 |
|
| 5 | whether [pron] [is] [to-vb] | 10 |
|
| 6 | whether it [is] [to-vb] | 9 |
|
