| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | and over a [noun] of [noun sg] | 10 |
|
| 2 | and over a [noun sg] of [noun sg] | 10 |
|
| 3 | and over a period of [noun sg] | 8 |
|
| 4 | and over a period of [noun sg] | 8 |
|
| 5 | and over a [noun] of time | 7 |
|
