| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] whether [to-vb] | 254 |
|
| 2 | [prep] whether [noun sg] | 231 |
|
| 3 | whether [to-vb] [noun sg] | 111 |
|
| 4 | [prep] [to-vb] [noun sg] | 76 |
|
