| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [adj] [noun pl] over a period | 14 |
|
| 2 | [prep] [adj] [noun pl] over a period | 14 |
|
| 3 | of [adj] [noun pl] over a period | 5 |
|
| 4 | of [adj] [noun pl] over a period | 5 |
|
| 5 | [adj] [noun pl] over a [adj] period | 32 |
|
| 6 | [adj] [noun pl] over a [adj] period | 30 |
|
| 7 | [adj] [noun pl] over a long period | 9 |
|
| 8 | [adj] [noun pl] over a long period | 7 |
|
| 9 | [adj] [noun pl] over a period [prep] | 26 |
|
| 10 | [adj] [noun pl] over a period [prep] | 26 |
|
| 11 | [adj] [noun pl] over a period of | 25 |
|
| 12 | [adj] [noun pl] over a period of | 25 |
|
