No | Pattern | Freq | Relations |
---|---|---|---|
1 | [prep] [noun prp] [prep] a period of | 15 | |
2 | [prep] [noun prp] [prep] a period of | 15 | |
3 | [prep] [noun prp] over a period of | 6 | |
4 | [prep] [noun prp] for a period of | 5 |
[prep] [noun prp] [prep] a period of Next page
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