| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] [noun] over a [adj] period | 121 |
|
| 2 | [det] [noun] [prep] a [adj] period | 45 |
|
| 3 | [det] [noun] [prep] a [adj] period | 45 |
|
| 4 | [det] [noun] over a [adj] [noun] | 38 |
|
| 5 | [det] [noun] over [art] [adj] period | 18 |
|
| 6 | [det] [noun] over a [adj] period | 13 |
|
