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