No | Pattern | Freq | Relations |
---|---|---|---|
1 | over a [adj] period [verb] | 24 | |
2 | [prep] a long period [verb] | 11 | |
3 | [prep] a long period [verb] | 11 | |
4 | over a long [noun sg] [verb] | 5 | |
5 | over [art] long period [verb] | 5 | |
6 | over a long period [verb] | 5 | |
7 | over a long period [verb] | 5 | |
8 | over [art] long period [verb] | 5 | |
9 | over a long [noun] [verb] | 5 | |
10 | over a long period [verb] | 5 |