| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | over a [adj] period of [noun] | 126 |
|
| 2 | over a [adj] period of [noun sg] | 121 |
|
| 3 | over a [adj] period of time | 120 |
|
| 4 | over a [adj] period of time | 120 |
|
| 5 | over a [adj] period of [adj] | 6 |
|
| 6 | over a [adj] period of [num] | 6 |
|
| 7 | over a [adj] period of [noun pl] | 5 |
|
| 8 | over a [adj] period of years | 5 |
|
| 9 | over a [adj] period of year | 5 |
|
| 10 | [noun] over a [adj] period of | 77 |
|
| 11 | [noun sg] over a [adj] period of | 55 |
|
| 12 | [verb] over a [adj] period of | 24 |
|
| 13 | [vb pp] over a [adj] period of | 23 |
|
| 14 | [noun pl] over a [adj] period of | 17 |
|
| 15 | [adv] over a [adj] period of | 12 |
|
| 16 | [adv] over a [adj] period of | 10 |
|
| 17 | [adj] over a [adj] period of | 6 |
|
| 18 | over a [adv] [adj] period of | 8 |
|
| 19 | over a [adv] [adj] period of | 8 |
|
