| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | of [noun] over a period of | 17 |
|
| 2 | [prep] [noun pl] over a period of | 16 |
|
| 3 | of [noun pl] over a [noun sg] of | 11 |
|
| 4 | of [noun pl] over a [noun] of | 11 |
|
| 5 | of [noun pl] [prep] a period of | 9 |
|
| 6 | of [noun pl] [prep] a period of | 9 |
|
| 7 | of [noun pl] over a period of | 8 |
|
| 8 | of [noun pl] over [art] period of | 8 |
|
| 9 | of [noun pl] over [art] period of | 8 |
|
| 10 | of [noun pl] over a period of | 8 |
|
| 11 | of [noun pl] over a period of | 8 |
|
| 12 | of [noun pl] over a period of | 8 |
|
| 13 | of [noun pl] over a period [prep] | 8 |
|
| 14 | of [noun pl] over a period [prep] | 8 |
|
