| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | take [noun] over a period [prep] | 5 |
|
| 2 | take [noun] over a period of | 5 |
|
| 3 | take place over a period [prep] | 5 |
|
| 4 | take [noun] over a period of | 5 |
|
| 5 | take [noun sg] over a period [prep] | 5 |
|
| 6 | take place over a period [prep] | 5 |
|
