No | Pattern | Freq | Relations |
---|---|---|---|
1 | [noun pl] [prep] a long period | 42 | |
2 | [noun pl] [prep] a long period | 42 | |
3 | [noun pl] over a long period | 34 | |
4 | [noun pl] over a long period | 34 | |
5 | [noun pl] [prep] a long period | 29 | |
6 | [noun pl] [prep] a longer period | 13 | |
7 | [noun pl] for a long period | 6 | |
8 | [noun pl] for a long period | 6 |