| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [adj] [noun pl] over [art] period | 19 |
|
| 2 | [prep] [adj] [noun pl] over a period | 14 |
|
| 3 | of [adj] [noun pl] over [art] period | 7 |
|
| 4 | of [adj] [noun pl] over [art] period | 7 |
|
| 5 | in [adj] [noun pl] over [art] period | 5 |
|
| 6 | [prep] [adj] [noun pl] over the period | 5 |
|
| 7 | in [adj] [noun pl] over [art] period | 5 |
|
