| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [vb pp] over the [adj] period | 6 |
|
| 2 | be [vb pp] over the [adj] period | 5 |
|
| 3 | be [vb pp] over the period [prep] | 5 |
|
| 4 | be [vb pp] over the period [prep] | 5 |
|
