| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [prep] a short period of | 18 |
|
| 2 | [noun] [prep] a short period of | 14 |
|
| 3 | [vb pp] [prep] a short period of | 10 |
|
| 4 | [adv] [prep] a short period of | 8 |
|
| 5 | [noun sg] [prep] a short period of | 8 |
|
| 6 | [adv] [prep] a short period of | 7 |
|
| 7 | [adj] [prep] a short period of | 5 |
|
| 8 | [prep] a [adv] short period of | 36 |
|
| 9 | [prep] a [adv] short period of | 36 |
|
| 10 | [prep] a relatively short period of | 14 |
|
| 11 | [prep] a relatively short period of | 14 |
|
| 12 | [prep] a very short period of | 13 |
|
| 13 | [prep] a very short period of | 13 |
|
| 14 | [prep] a short period of [noun] | 55 |
|
| 15 | [prep] a short period of [noun sg] | 54 |
|
| 16 | [prep] a short period of time | 42 |
|
| 17 | [prep] a short period of time | 42 |
|
