| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [art] [num] year period | 196 |
|
| 2 | [art] [num] year period | 196 |
|
| 3 | a [num] year period | 130 |
|
| 4 | a [num] year period | 128 |
|
| 5 | the [num] year period | 66 |
|
| 6 | the [num] year period | 66 |
|
| 7 | [adj] [num] year period | 35 |
|
| 8 | [det] [num] year period | 19 |
|
| 9 | any [num] year period | 8 |
|
| 10 | any [num] year period | 8 |
|
| 11 | [prep] [num] year period | 6 |
|
| 12 | this [num] year period | 6 |
|
| 13 | [prep] [num] year period | 6 |
|
| 14 | this [num] year period | 6 |
|
| 15 | [conj] [num] year period | 5 |
|
| 16 | [adj] [num] year period | 5 |
|
| 17 | [coord] [num] year period | 5 |
|
| 18 | [num] [num] year period | 5 |
|
| 19 | [num ord] [num] year period | 5 |
|
| 20 | [num] [adj] year period | 5 |
|
| 21 | [num] [num] year period | 5 |
|
| 22 | [num] year [noun] period | 16 |
|
| 23 | [num] year [noun sg] period | 16 |
|
| 24 | [num] year period [prep] | 40 |
|
| 25 | [num] year period [prep] | 40 |
|
| 26 | [num] year period [verb] | 21 |
|
| 27 | [num] year period of | 13 |
|
| 28 | [num] year period of | 13 |
|
| 29 | [num] year period [conj] | 11 |
|
| 30 | [num] year period [coord] | 9 |
|
