No | Pattern | Freq | Relations |
---|---|---|---|
1 | [noun] over a period of years | 30 | |
2 | [noun sg] over a period of years | 18 | |
3 | [noun pl] over a period of years | 10 | |
4 | [vb pp] over a period of years | 9 | |
5 | [verb] over a period of years | 9 | |
6 | [adv] over a period of years | 7 | |
7 | [adj] over a period of years | 6 | |
8 | [adj] over a period of years | 6 | |
9 | over a [adj] period of years | 5 | |
10 | over a [adj] period of years | 5 | |
11 | over a period of [adj] years | 109 | |
12 | over a period of [num] years | 97 | |
13 | over a period of five years | 12 | |
14 | over a period of five years | 12 | |
15 | over a period of [det] years | 12 | |
16 | over a period of two years | 12 | |
17 | over a period of two years | 12 | |
18 | over a period of three years | 8 | |
19 | over a period of three years | 8 | |
20 | 7 | ||
21 | over a period of several years | 7 | |
22 | over a period of twenty years | 6 | |
23 | over a period of twenty years | 6 | |
24 | over a period of ten years | 5 | |
25 | over a period of ten years | 5 | |
26 | over a period of years [prep] | 8 | |
27 | over a period of years [prep] | 8 |