| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] up over a period of | 6 |
|
| 2 | up over a period of [noun] | 7 |
|
| 3 | up over a period of [noun sg] | 5 |
|
| 4 | up over a period of time | 5 |
|
| 5 | up over a period of time | 5 |
|
