| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] [to-vb] whether the [noun sg] | 25 |
|
| 2 | [vb pp] [to-vb] whether the [noun pl] | 7 |
|
| 3 | [vb pp] to determine whether the [noun] | 6 |
|
| 4 | [vb pp] to ascertain whether the [noun] | 5 |
|
| 5 | [vb pp] to see whether the [noun] | 5 |
|
| 6 | made [to-vb] whether the [noun] | 5 |
|
