| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] over a [adj] period | 86 |
|
| 2 | [verb] [adv] over a [adj] | 44 |
|
| 3 | [adv] over a [adj] period | 29 |
|
| 4 | [verb] [adv] over a period | 12 |
|
| 5 | [verb] [adv] a [adj] period | 8 |
|
