| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | the [noun] over a [adj] period | 21 |
|
| 2 | the [noun sg] over a [adj] period | 14 |
|
| 3 | the [noun pl] over a [adj] period | 10 |
|
| 4 | the [noun] over a long period | 9 |
|
| 5 | the [noun] over a long period | 6 |
|
