| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | period of [adj] years | 337 |
|
| 2 | period of [num] years | 327 |
|
| 3 | period of five years | 50 |
|
| 4 | period of five years | 50 |
|
| 5 | period of three years | 45 |
|
| 6 | period of three years | 45 |
|
| 7 | period of two years | 44 |
|
| 8 | period of two years | 44 |
|
| 9 | period of [det] years | 20 |
|
| 10 | period of ten years | 18 |
|
| 11 | period of ten years | 18 |
|
| 12 | period of four years | 15 |
|
| 13 | period of four years | 15 |
|
| 14 | period of twenty years | 13 |
|
| 15 | period of twenty years | 13 |
|
| 16 | period of several years | 12 |
|
| 17 | period of several years | 12 |
|
| 18 | period of six years | 12 |
|
| 19 | period of six years | 12 |
|
| 20 | periods of [adj] years | 11 |
|
| 21 | period of 10 years | 10 |
|
| 22 | period of 10 years | 10 |
|
| 23 | period of seven years | 10 |
|
| 24 | period of seven years | 10 |
|
| 25 | period of 20 years | 8 |
|
| 26 | period of 20 years | 8 |
|
| 27 | period of 15 years | 6 |
|
| 28 | period of 15 years | 6 |
|
| 29 | period of thirty years | 5 |
|
| 30 | period of fifteen years | 5 |
|
