| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] short period [prep] | 72 |
|
| 2 | [adv] short period [prep] | 72 |
|
| 3 | [adv] short period [prep] | 62 |
|
| 4 | [adv] short period of | 57 |
|
| 5 | [adv] short period of | 57 |
|
| 6 | relatively short period [prep] | 27 |
|
| 7 | relatively short period [prep] | 27 |
|
| 8 | very short period [prep] | 26 |
|
| 9 | very short period [prep] | 26 |
|
| 10 | [adv] short periods [prep] | 10 |
|
| 11 | [adv] short period in | 6 |
|
| 12 | [adv] short period in | 6 |
|
