No | Pattern | Freq | Relations |
---|---|---|---|
1 | [prep] a long period | 305 | |
2 | over a long period | 232 | |
3 | for a long period | 101 | |
4 | [prep] a longer period | 86 | |
5 | after a long period | 22 | |
6 | of a long period | 12 | |
7 | to a long period | 5 | |
8 | during a long period | 5 | |
9 | from a long period | 5 |