| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] over [adj] periods of [noun sg] | 8 |
|
| 2 | [vb pp] over [adj] periods of [noun] | 8 |
|
| 3 | [vb pp] over [adj] periods of time | 7 |
|
| 4 | [vb pp] over [adj] periods of time | 7 |
|
