No | Pattern | Freq | Relations |
---|---|---|---|
1 | a [noun sg] [prep] a period | 40 | |
2 | a [noun sg] [prep] a period | 31 | |
3 | a [noun sg] for a period | 17 | |
4 | a [noun sg] for a period | 17 | |
5 | a [noun sg] over a period | 12 | |
6 | a [noun sg] over a period | 12 | |
7 | an [noun sg] [prep] a period | 9 |