No | Pattern | Freq | Relations |
---|---|---|---|
1 | over a period of [adj] years | 109 | |
2 | [prep] a period of two years | 32 | |
3 | over a period of two [noun pl] | 25 | |
4 | over a period of two [noun] | 25 | |
5 | over a [noun] of two years | 13 | |
6 | over a [noun sg] of two years | 13 | |
7 | over [art] period of two years | 12 | |
8 | over a period of two years | 12 | |
9 | over a period of two years | 12 | |
10 | over [art] period of two years | 12 | |
11 | over a period [prep] two years | 12 | |
12 | over a period [prep] two years | 12 | |
13 | over a period of two years | 12 | |
14 | over a period of two year | 12 |