| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] a [noun] | 76638 |
|
| 2 | [adv] a [noun sg] | 74195 |
|
| 3 | [adv] [art] period | 223 |
|
| 4 | [adv] a period | 152 |
|
