No | Pattern | Freq | Relations |
---|---|---|---|
1 | [verb] over a period of | 59 | |
2 | [vb -s] over a [noun] of | 17 | |
3 | [vb -s] over a [noun sg] of | 17 | |
4 | [vb -s] [adv] a period of | 9 | |
5 | [vb -s] [adv prt] a period of | 8 | |
6 | [vb -s] over a period of | 8 | |
7 | [vb -s] over a period [prep] | 8 | |
8 | [vb -s] over a period of | 8 | |
9 | [vb -s] over a period of | 8 | |
10 | [vb -s] over [art] period of | 8 | |
11 | [vb -s] over a period [prep] | 8 | |
12 | [vb -s] over [art] period of | 8 | |
13 | [vb -s] over a period of | 8 |