| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [coord] [verb] [adv] [prep] a period | 5 |
|
| 2 | [coord] [adv] [prep] a [adj] period | 13 |
|
| 3 | [coord] [adv] [prep] a [adj] period | 12 |
|
| 4 | [coord] [adv] [prep] a short period | 5 |
|
| 5 | [coord] [adv] [prep] a short period | 5 |
|
| 6 | [coord] [adv] [prep] a period [prep] | 9 |
|
| 7 | [coord] [adv] [prep] a period of | 9 |
|
| 8 | [coord] [adv] [prep] a period [prep] | 9 |
|
| 9 | [coord] [adv] [prep] a period of | 9 |
|
