No | Pattern | Freq | Relations |
---|---|---|---|
1 | of [noun] [prep] a long period | 22 | |
2 | of [noun] over a long period | 18 | |
3 | of [noun] [prep] a long period | 18 | |
4 | of [noun] over a long period | 18 | |
5 | of [noun sg] [prep] a long period | 16 | |
6 | of [noun pl] [prep] a long period | 5 |