| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [noun] [noun pl] over a period | 7 |
|
| 2 | [noun] [prep] [noun pl] over a period | 11 |
|
| 3 | [noun] [prep] [noun pl] over a period | 11 |
|
| 4 | [noun] of [noun pl] over a period | 8 |
|
| 5 | [noun] of [noun pl] over a period | 8 |
|
| 6 | [noun] [noun pl] over a [adj] period | 18 |
|
| 7 | [noun] [noun pl] over a [adj] period | 17 |
|
| 8 | [noun] [noun pl] over a long period | 6 |
|
| 9 | [noun] [noun pl] over a long period | 5 |
|
| 10 | [noun] [noun pl] over a period [prep] | 19 |
|
| 11 | [noun] [noun pl] over a period [prep] | 19 |
|
| 12 | [noun] [noun pl] over a period of | 18 |
|
| 13 | [noun] [noun pl] over a period of | 18 |
|
