| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] [adj] [noun] over a period | 12 |
|
| 2 | [adj] [adj] [noun sg] [prep] a period | 11 |
|
| 3 | [adj] [adj] [noun pl] [prep] a period | 9 |
|
| 4 | [adj] [adj] [noun] [prep] a period | 9 |
|
| 5 | [det] [adj] [noun] [prep] a period | 7 |
|
| 6 | [adj] [adj] [noun] for a period | 5 |
|
