No | Pattern | Freq | Relations |
---|---|---|---|
1 | [prep] a fixed period of time | 16 | |
2 | [prep] a fixed period [prep] time | 16 | |
3 | [prep] a fixed period of time | 16 | |
4 | [prep] a fixed period [prep] time | 16 | |
5 | for a fixed period [prep] time | 11 |
[prep] a fixed period [prep] time Next page
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