| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] a short [noun] [prep] | 165 |
|
| 2 | [adv] a short [noun sg] [prep] | 165 |
|
| 3 | [adv] a [adj] period [prep] | 58 |
|
| 4 | [adv] [art] short period [prep] | 12 |
|
| 5 | [adv] a short period [prep] | 12 |
|
