| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [adv prt] over a | 119 |
|
| 2 | [verb] over a period | 83 |
|
| 3 | [verb] [adv prt] a period | 71 |
|
| 4 | [adv prt] over a period | 29 |
|
