No | Pattern | Freq | Relations |
---|---|---|---|
1 | and [prep] a period [prep] | 26 | |
2 | and [prep] a period [prep] | 26 | |
3 | [conj] over a period [prep] | 25 | |
4 | and over a [noun] [prep] | 23 | |
5 | [coord] over a period [prep] | 18 | |
6 | and over a period [prep] | 12 | |
7 | and over [art] period [prep] | 12 | |
8 | and over a period [prep] | 12 |