| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [verb] over a period | 46 |
|
| 2 | [be] [vb pp] over a period | 46 |
|
| 3 | [be] [adj] over a period | 6 |
|
| 4 | [be] [adj] over a period | 6 |
|
| 5 | [be] made over a period | 5 |
|
| 6 | [be] make over a period | 5 |
|
