No | Pattern | Freq | Relations |
---|---|---|---|
1 | [prep] a [adj] period [prep] | 773 | |
2 | a [adj] period [prep] [noun] | 675 | |
3 | [prep] a period [prep] [noun] | 607 | |
4 | [prep] a [adj] [prep] [noun] | 251 | |
5 | [prep] [adj] period [prep] [noun] | 150 | |
6 | [prep] a [adj] period [noun] | 14 |