| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] over a [adj] [noun sg] period | 23 |
|
| 2 | [vb pp] over a [adj] [noun] period | 23 |
|
| 3 | [vb pp] [prep] a [adj] year period | 14 |
|
| 4 | [vb pp] [prep] a [adj] year period | 14 |
|
| 5 | [vb pp] over [art] [adj] year period | 11 |
|
| 6 | [vb pp] over [art] [adj] year period | 11 |
|
| 7 | [vb pp] over a [adj] year period | 8 |
|
| 8 | [vb pp] over a [adj] year period | 8 |
|
| 9 | [verb] over a [adj] year period | 8 |
|
| 10 | [vb pp] over a [adj] year [noun] | 8 |
|
| 11 | [vb pp] over a [adj] year period | 8 |
|
| 12 | [vb pp] over a [adj] year period | 8 |
|
| 13 | [vb pp] over a [adj] year [noun sg] | 8 |
|
