| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] over a long period [prep] | 9 |
|
| 2 | [adv] over a long [noun sg] [prep] | 9 |
|
| 3 | [adv] over a long period [prep] | 9 |
|
| 4 | [adv] over a long [noun] [prep] | 9 |
|
| 5 | [adv] over a long [noun] [prep] | 8 |
|
| 6 | [adv] over a long [noun] of | 8 |
|
