| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [art] [adv] short period [prep] | 43 |
|
| 2 | [prep] [art] [adv] short period of | 37 |
|
| 3 | [prep] a [adv] short period [prep] | 37 |
|
| 4 | [prep] a [adv] short period [prep] | 34 |
|
| 5 | [prep] [art] relatively short period [prep] | 19 |
|
| 6 | in [art] [adv] short period [prep] | 18 |
|
| 7 | [prep] [art] very short period [prep] | 14 |
|
| 8 | for [art] [adv] short period [prep] | 9 |
|
| 9 | within [art] [adv] short period [prep] | 7 |
|
| 10 | [prep] the [adv] short period [prep] | 6 |
|
| 11 | [prep] the [adv] short period [prep] | 6 |
|
| 12 | over [art] [adv] short period [prep] | 5 |
|
