| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] an [noun] [prep] [Wh adv] | 22 |
|
| 2 | [conj] an [noun sg] [prep] [Wh adv] | 22 |
|
| 3 | [conj] an [noun] [prep] how | 21 |
|
| 4 | [conj] an [noun] of [Wh adv] | 19 |
|
| 5 | [conj] an [noun] of [Wh adv] | 19 |
|
| 6 | [coord] an [noun] [prep] [Wh adv] | 16 |
|
| 7 | and an [noun] [prep] [Wh adv] | 12 |
|
| 8 | and an [noun] [prep] [Wh adv] | 12 |
|
