No | Pattern | Freq | Relations |
---|---|---|---|
1 | [prep] a long period [verb] | 11 | |
2 | [prep] a long period [verb] | 9 | |
3 | for a long period [verb] | 6 | |
4 | for a long period [verb] | 6 | |
5 | over a long period [verb] | 5 | |
6 | over a long period [verb] | 5 |
[prep] a long period [verb] Next page
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