| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] over a period of [noun] | 33 |
|
| 2 | [verb] [prep] a period of time | 31 |
|
| 3 | [verb] [prep] a period of time | 31 |
|
| 4 | [verb] over [art] period of time | 23 |
|
| 5 | [verb] over [art] period of time | 23 |
|
| 6 | [verb] over a period [prep] time | 22 |
|
| 7 | [verb] over a [noun] of time | 22 |
|
| 8 | [verb] over a period [prep] time | 22 |
|
| 9 | [verb] over a period of time | 22 |
|
| 10 | [verb] over a period of time | 22 |
|
| 11 | [verb] over a period of time | 22 |
|
| 12 | [verb] over a period of time | 22 |
|
| 13 | [verb] over a [noun sg] of time | 22 |
|
