| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [prep] such a period | 8 |
|
| 2 | [noun sg] [prep] such a period | 7 |
|
| 3 | [prep] such a [adj] period | 26 |
|
| 4 | [prep] such a [adj] period | 26 |
|
| 5 | [prep] such a long period | 10 |
|
| 6 | [prep] such a long period | 10 |
|
| 7 | [prep] such a short period | 9 |
|
| 8 | [prep] such a short period | 9 |
|
| 9 | [prep] such a period of | 8 |
|
| 10 | [prep] such a period [prep] | 8 |
|
| 11 | [prep] such a period of | 8 |
|
| 12 | [prep] such a period [prep] | 8 |
|
