| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] over [art] long period [prep] | 51 |
|
| 2 | [noun] over [art] long period [prep] | 51 |
|
| 3 | [noun] over a long period [prep] | 50 |
|
| 4 | [noun] over a long period [prep] | 50 |
|
| 5 | [noun] over [art] long period [prep] | 46 |
|
| 6 | [noun] over [art] long period of | 45 |
|
| 7 | [noun] over [art] long period of | 45 |
|
| 8 | [noun sg] over [art] long period [prep] | 41 |
|
| 9 | [noun pl] over [art] long period [prep] | 8 |
|
| 10 | [noun] over [art] longer period [prep] | 5 |
|
