| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [prep] long period | 127 |
|
| 2 | [verb] [prep] long period | 127 |
|
| 3 | [verb] over [adj] period | 37 |
|
| 4 | [verb] over long [noun] | 13 |
|
| 5 | [verb] over long period | 10 |
|
