| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] such a period | 18 |
|
| 2 | [prep] such a period | 18 |
|
| 3 | of such a period | 5 |
|
| 4 | in such a period | 5 |
|
| 5 | over such a period | 5 |
|
| 6 | over such a period | 5 |
|
| 7 | in such a period | 5 |
|
| 8 | of such a period | 5 |
|
| 9 | such a [adj] period | 32 |
|
| 10 | such a [adj] period | 32 |
|
| 11 | such a long period | 13 |
|
| 12 | such a long period | 13 |
|
| 13 | such a short period | 10 |
|
| 14 | such a short period | 10 |
|
| 15 | such a period of | 11 |
|
| 16 | such a period [prep] | 11 |
|
| 17 | such a period [prep] | 11 |
|
| 18 | such a period of | 11 |
|
