| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [adj] over a period | 7 |
|
| 2 | [be] [adj] over a period | 6 |
|
| 3 | be [adj] over a period | 6 |
|
| 4 | [adj] [noun] over a period | 111 |
|
| 5 | [adj] [noun sg] over a period | 59 |
|
| 6 | [adj] [noun pl] over a period | 48 |
|
| 7 | [adj] over a [adj] period | 27 |
|
| 8 | [adj] over a [adj] period | 25 |
|
| 9 | [adj] over a five-year period | 6 |
|
| 10 | [adj] over a five-year period | 6 |
|
| 11 | [adj] over a long period | 6 |
|
| 12 | [adj] over a period [prep] | 28 |
|
| 13 | [adj] over a period [prep] | 28 |
|
| 14 | [adj] over a period of | 27 |
|
| 15 | [adj] over a period of | 27 |
|
