| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | about [subord] a [noun sg] | 18 |
|
| 2 | about whether a [noun] | 18 |
|
| 3 | about [subord] a [noun] | 14 |
|
| 4 | about [subord] an [noun] | 5 |
|
