| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | take place over a [noun] of | 9 |
|
| 2 | [verb] place over a [noun sg] of | 9 |
|
| 3 | [verb] place over a period of | 5 |
|
| 4 | [verb] place over a period of | 5 |
|
