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