No | Pattern | Freq | Relations |
---|---|---|---|
1 | [adj] years ['s] duration | 71 | |
2 | [adj] years ' duration | 71 | |
3 | [adj] years ' duration | 71 | |
4 | [num] years [unc] duration | 70 | |
5 | four years [unc] duration | 27 | |
6 | four years [unc] duration | 27 | |
7 | three years [unc] duration | 25 | |
8 | three years [unc] duration | 25 | |
9 | two years [unc] duration | 7 | |
10 | two years [unc] duration | 7 |