| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] over long period | 10 |
|
| 2 | over [art] long period | 32 |
|
| 3 | over [art] long period | 32 |
|
| 4 | over a long period | 32 |
|
| 5 | over a long period | 32 |
|
| 6 | over [adv] long period | 5 |
|
| 7 | over [adv] long period | 5 |
|
