No | Pattern | Freq | Relations |
---|---|---|---|
1 | [prep] a [adj] period of | 544 | |
2 | [prep] a long [noun] of | 529 | |
3 | [prep] a long [noun sg] of | 492 | |
4 | [prep] a long period [prep] | 179 | |
5 | [prep] [art] long period of | 168 | |
6 | [prep] [art] long period of | 168 | |
7 | [prep] a long period of | 152 | |
8 | [prep] a long period of | 152 | |
9 | [prep] a long period of | 152 |