| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [prep] a [noun] | 18821 |
|
| 2 | [adv] [prep] a [noun sg] | 17888 |
|
| 3 | [adv] [prep] [art] period | 254 |
|
| 4 | [adv] [prep] [art] period | 254 |
|
| 5 | [adv] [prep] a period | 178 |
|
| 6 | [adv] [prep] a period | 121 |
|
| 7 | [adv] [prep] a period | 121 |
|
