| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [prep] a period of years | 36 |
|
| 2 | [noun sg] [prep] a period of years | 22 |
|
| 3 | [noun pl] [prep] a period of years | 12 |
|
| 4 | [verb] [prep] a period of years | 10 |
|
| 5 | [vb pp] [prep] a period of years | 10 |
|
| 6 | [adv] [prep] a period of years | 7 |
|
| 7 | [adj] [prep] a period of years | 7 |
|
| 8 | [adj] [prep] a period of years | 7 |
|
| 9 | [prep] a [adj] period of years | 6 |
|
| 10 | [prep] a [adj] period of years | 6 |
|
| 11 | [prep] a period of [adj] years | 212 |
|
| 12 | [prep] a period of [num] years | 196 |
|
| 13 | [prep] a period of two years | 32 |
|
| 14 | [prep] a period of two years | 32 |
|
| 15 | [prep] a period of five years | 31 |
|
| 16 | [prep] a period of five years | 31 |
|
| 17 | [prep] a period of three years | 24 |
|
| 18 | [prep] a period of three years | 24 |
|
| 19 | [prep] a period of [det] years | 15 |
|
| 20 | [prep] a period of twenty years | 10 |
|
| 21 | [prep] a period of twenty years | 10 |
|
| 22 | [prep] a period of several years | 9 |
|
| 23 | [prep] a period of ten years | 9 |
|
| 24 | [prep] a period of several years | 9 |
|
| 25 | [prep] a period of ten years | 9 |
|
| 26 | [prep] a period of four years | 9 |
|
| 27 | [prep] a period of four years | 9 |
|
| 28 | [prep] a period of six years | 8 |
|
| 29 | [prep] a period of six years | 8 |
|
| 30 | [prep] a period of 10 years | 7 |
|
