| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [adj -er] period [prep] | 36 |
|
| 2 | [prep] a [adj -er] period [prep] | 36 |
|
| 3 | [verb] a [adj -er] period [prep] | 18 |
|
| 4 | for a [adj -er] period [prep] | 15 |
|
| 5 | for a [adj -er] period [prep] | 15 |
|
| 6 | over a [adj -er] period [prep] | 10 |
|
| 7 | over a [adj -er] period [prep] | 10 |
|
| 8 | [to-vb] a [adj -er] period [prep] | 6 |
|
| 9 | a [adv] [adj -er] period [prep] | 8 |
|
| 10 | a [adv] [adj -er] period [prep] | 8 |
|
| 11 | a much [adj -er] period [prep] | 7 |
|
| 12 | a much [adj -er] period [prep] | 7 |
|
| 13 | a [adj -er] [noun sg] period [prep] | 6 |
|
| 14 | a [adj -er] [noun] period [prep] | 6 |
|
| 15 | a [adj -er] period [prep] [noun] | 41 |
|
| 16 | a [adj -er] period [prep] [noun sg] | 38 |
|
| 17 | a [adj -er] period [prep] time | 18 |
|
| 18 | a [adj -er] period [prep] time | 18 |
|
| 19 | a [adj -er] period [prep] [adj] | 13 |
|
| 20 | a [adj -er] period [prep] [art] | 8 |
|
| 21 | a [adj -er] period [prep] [art] | 8 |
|
| 22 | a [adj -er] period [prep] [adj] | 7 |
|
| 23 | a [adj -er] period [prep] the | 6 |
|
| 24 | a [adj -er] period [prep] the | 6 |
|
| 25 | a [adj -er] period [prep] [num] | 5 |
|
