| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [prep] whether | 1826 |
|
| 2 | [prep] whether [to-vb] | 254 |
|
| 3 | [noun] [prep] [to-vb] | 137 |
|
| 4 | [noun] whether [to-vb] | 125 |
|
