No | Pattern | Freq | Relations |
---|---|---|---|
1 | [noun] over a [num] year period | 43 | |
2 | [noun sg] over a [num] year period | 21 | |
3 | [noun pl] over a [num] year period | 17 | |
4 | [vb pp] over a [num] year period | 8 | |
5 | [verb] over a [num] year period | 8 | |
6 | over a [num] year period [prep] | 11 | |
7 | over a [num] year period [prep] | 11 |