No | Pattern | Freq | Relations |
---|---|---|---|
1 | gradually over a period [prep] | 7 | |
2 | gradually over [art] period of | 7 | |
3 | gradually over [art] period [prep] | 7 | |
4 | gradually over [art] period [prep] | 7 | |
5 | gradually over a period [prep] | 7 |
gradually over [art] period [prep] Next page
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