| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] over [art] [adj] period [prep] | 37 |
|
| 2 | [vb pp] over [art] [adj] period [prep] | 35 |
|
| 3 | [verb] over [art] [adj] period [prep] | 31 |
|
| 4 | [verb] over a [adj] period [prep] | 28 |
|
| 5 | [verb] over [art] [adj] period of | 25 |
|
| 6 | [verb] over [art] [adj] period of | 25 |
|
| 7 | [verb] over [art] long period [prep] | 17 |
|
| 8 | [verb] over [art] long period [prep] | 14 |
|
| 9 | [verb] over the [adj] period [prep] | 9 |
|
