| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] place [prep] a period | 10 |
|
| 2 | take place [prep] a period | 10 |
|
| 3 | place [prep] a [adj] period | 12 |
|
| 4 | place [prep] a [adj] period | 12 |
|
| 5 | place [prep] a period [prep] | 12 |
|
| 6 | place [prep] a period [prep] | 12 |
|
| 7 | place [prep] a period of | 11 |
|
| 8 | place [prep] a period of | 11 |
|
