No | Pattern | Freq | Relations |
---|---|---|---|
1 | [noun prp] [prep] a period | 40 | |
2 | [noun prp] [prep] a period | 40 | |
3 | [noun prp] for a period | 16 | |
4 | [noun prp] for a period | 16 | |
5 | [noun prp] over a period | 12 | |
6 | [noun prp] over a period | 12 | |
7 | [noun prp] after a period | 5 | |
8 | [noun prp] after a period | 5 |