| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] [adv] a [noun] | 5215 |
|
| 2 | at [adv] a [noun] | 751 |
|
| 3 | [conj] at a [noun] | 400 |
|
| 4 | [conj] at [adv] [noun] | 213 |
|
| 5 | [conj] at [adv] a | 170 |
|
