No | Pattern | Freq | Relations |
---|---|---|---|
1 | [prep] [art] [adv] long period of | 12 | |
2 | [prep] a [adv] long period of | 11 | |
3 | [prep] [art] [adv] long period of | 8 | |
4 | for [art] [adv] long period of | 6 | |
5 | for [art] [adv] long period of | 6 | |
6 | over [art] [adv] long period of | 5 | |
7 | over [art] [adv] long period of | 5 |