No | Pattern | Freq | Relations |
---|---|---|---|
1 | [prep] a long period [prep] [adj] | 21 | |
2 | [prep] a long period [prep] [adj] | 19 | |
3 | [prep] a long period [prep] [adj] | 18 | |
4 | [prep] a long period of [adj] | 17 | |
5 | of a long period [prep] [adj] | 5 | |
6 | of a long period [prep] [adj] | 5 |