| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [art] short period [prep] time | 56 |
|
| 2 | [adv] short period [prep] time | 42 |
|
| 3 | [adv] [art] period [prep] time | 23 |
|
| 4 | [adv] [art] short period [prep] | 12 |
|
