| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [vb pp] over [art] [adj] period | 15 |
|
| 2 | have [verb] over a [adj] period | 14 |
|
| 3 | have [verb] over [art] long period | 12 |
|
| 4 | has [verb] over [art] [adj] period | 6 |
|
