| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [prep] a [adj] period | 153 |
|
| 2 | [adv] [prep] a [adj] period | 117 |
|
| 3 | [adv] for a [adj] period | 67 |
|
| 4 | [adv prt] [prep] a [adj] period | 43 |
|
| 5 | [adv] over a [adj] period | 43 |
|
| 6 | [adv] [prep] a long period | 36 |
|
| 7 | [adv] [prep] a long period | 29 |
|
| 8 | [adv] [prep] a short period | 28 |
|
| 9 | [adv] [prep] a short period | 28 |
|
| 10 | only [prep] a [adj] period | 26 |
|
| 11 | only [prep] a [adj] period | 26 |
|
| 12 | [adv] after a [adj] period | 13 |
|
| 13 | out [prep] a [adj] period | 13 |
|
| 14 | out [prep] a [adj] period | 13 |
|
| 15 | apart [prep] a [adj] period | 11 |
|
| 16 | apart [prep] a [adj] period | 11 |
|
| 17 | [adv] [prep] a brief period | 11 |
|
| 18 | [adv] in a [adj] period | 11 |
|
| 19 | [adv] [prep] a brief period | 11 |
|
| 20 | on [prep] a [adj] period | 10 |
|
| 21 | on [prep] a [adj] period | 10 |
|
| 22 | [adv] [prep] a [adj -er] period | 9 |
|
| 23 | [adv] from a [adj] period | 8 |
|
| 24 | [adv] [prep] a longer period | 7 |
|
| 25 | [adv] [prep] a limited period | 7 |
|
| 26 | [adv] [prep] a limited period | 7 |
|
| 27 | up [prep] a [adj] period | 6 |
|
| 28 | [adv] [prep] a certain period | 6 |
|
| 29 | even [prep] a [adj] period | 6 |
|
| 30 | even [prep] a [adj] period | 6 |
|
