| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a very short [noun] [prep] | 51 |
|
| 2 | [prep] a very short [noun sg] [prep] | 51 |
|
| 3 | [prep] a [adv] short period [prep] | 37 |
|
| 4 | [prep] a [adv] short period [prep] | 37 |
|
| 5 | [prep] a very [adj] period [prep] | 26 |
|
| 6 | [prep] [art] very short period [prep] | 14 |
|
| 7 | [prep] [art] very short period [prep] | 14 |
|
| 8 | [prep] a very short period [prep] | 14 |
|
| 9 | [prep] a very short period [prep] | 14 |
|
| 10 | [prep] a very short period [prep] | 14 |
|
| 11 | [prep] a very short period [prep] | 14 |
|
