| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] over long period of | 13 |
|
| 2 | [noun sg] over long period of | 6 |
|
| 3 | [noun pl] over long period of | 6 |
|
| 4 | over [art] long period of | 78 |
|
| 5 | over [art] long period of | 78 |
|
| 6 | over a long period of | 77 |
|
| 7 | over a long period of | 77 |
|
| 8 | over long period of time | 19 |
|
| 9 | over long period of [noun] | 19 |
|
| 10 | over long period of [noun sg] | 19 |
|
| 11 | over long period of time | 19 |
|
