| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [noun] [Wh adv] [art] | 1078 |
|
| 2 | [noun sg] [prep] a [noun] [Wh adv] | 784 |
|
| 3 | [noun sg] [prep] [noun] [Wh adv] [art] | 515 |
|
| 4 | [noun sg] [prep] a [noun] [art] | 435 |
|
