| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [coord] [verb] over [art] period | 8 |
|
| 2 | [coord] [verb] over a period | 7 |
|
| 3 | and [verb] over [art] period | 7 |
|
| 4 | [coord] [verb] over a period | 7 |
|
| 5 | [coord] [vb past] over [art] period | 5 |
|
