| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | place [prep] a period [prep] | 11 |
|
| 2 | place [prep] a period [prep] | 11 |
|
| 3 | place [prep] a period of | 10 |
|
| 4 | place [prep] a period of | 10 |
|
| 5 | place over a period [prep] | 8 |
|
| 6 | place over a period [prep] | 8 |
|
