| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] over a [adj] period | 262 |
|
| 2 | [adj] [noun] over a [adj] | 253 |
|
| 3 | [adj] [noun] over a period | 72 |
|
| 4 | [adj] over a [adj] period | 12 |
|
| 5 | [adj] [noun] over [adj] period | 9 |
|
