| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] over a [adj] period | 172 |
|
| 2 | [noun sg] over a long period | 81 |
|
| 3 | [noun sg] [prep] a longer period | 27 |
|
| 4 | [noun sg] [prep] a longer period | 27 |
|
| 5 | [noun] over a longer period | 25 |
|
| 6 | [noun sg] over a longer [noun] | 17 |
|
| 7 | [noun sg] over a longer [noun sg] | 17 |
|
| 8 | [noun sg] over a [adj -er] period | 16 |
|
| 9 | [noun sg] over [art] longer period | 15 |
|
| 10 | [noun sg] over [art] longer period | 15 |
|
| 11 | [noun sg] over a longer period | 15 |
|
| 12 | [noun sg] over a longer period | 15 |
|
| 13 | [noun sg] over a longer period | 15 |
|
