| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] over a [adj] period | 289 |
|
| 2 | [coord] [noun] over a [adj] | 37 |
|
| 3 | [coord] over a [adj] period | 11 |
|
| 4 | [coord] [noun] over a period | 10 |
|
