| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] over a [noun] of | 225 |
|
| 2 | [verb] over a [noun sg] of | 218 |
|
| 3 | [verb] [adv] a period of | 67 |
|
| 4 | [verb] [adv prt] a period of | 64 |
|
| 5 | [verb] over [art] period of | 61 |
|
| 6 | [verb] over [art] period of | 61 |
|
| 7 | [verb] over a period [prep] | 60 |
|
| 8 | [verb] over a period of | 59 |
|
| 9 | [verb] over a period of | 59 |
|
| 10 | [verb] over a period of | 59 |
|
