| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] an [noun sg] [noun] | 7610 |
|
| 2 | [prep] [noun sg] [noun] [adv] | 5386 |
|
| 3 | [prep] an [noun] [adv] | 1413 |
|
| 4 | [prep] an [noun sg] [adv] | 1388 |
|
| 5 | an [noun sg] [noun] [adv] | 429 |
|
