No | Pattern | Freq | Relations |
---|---|---|---|
1 | over a [adj] period [prep] [noun] | 21 | |
2 | over a [adj] period [prep] [noun] | 21 | |
3 | [adv] a long period [prep] [noun] | 12 | |
4 | over a long period [prep] [noun] | 9 | |
5 | over a long [noun] [prep] [noun] | 9 | |
6 | over [art] long period [prep] [noun] | 9 | |
7 | over a long period [prep] [noun] | 9 |