| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] [to-vb] [prep] a [noun sg] | 176 |
|
| 2 | whether [to-vb] [prep] [art] [noun sg] | 48 |
|
| 3 | whether [verb] [prep] a [noun sg] | 37 |
|
| 4 | whether [to-vb] [prep] a [noun] | 17 |
|
