No | Pattern | Freq | Relations |
---|---|---|---|
1 | [adv] [prep] a long period of | 15 | |
2 | [adv] [prep] a long period of | 15 | |
3 | [adv] over a [adj] period of | 13 | |
4 | [adv] over a [adj] period of | 13 | |
5 | [adv] over a long period [prep] | 9 | |
6 | [adv] over a long period [prep] | 9 | |
7 | [adv] over a long period of | 8 | |
8 | [adv] over a long period of | 8 | |
9 | [adv] over a long [noun] of | 8 | |
10 | [adv] over a long period of | 8 | |
11 | [adv] over [art] long period of | 8 |