No | Pattern | Freq | Relations |
---|---|---|---|
1 | [verb] a [adj] period [prep] | 180 | |
2 | [verb] a longer [noun] [prep] | 40 | |
3 | [verb] a long period [prep] | 26 | |
4 | [verb] a [adj -er] period [prep] | 18 | |
5 | [verb] [art] longer period [prep] | 7 | |
6 | [verb] a longer period [prep] | 7 | |
7 | [verb] [art] longer period [prep] | 7 | |
8 | [verb] a longer period [prep] | 7 |