| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] [prep] three years | 146 |
|
| 2 | [prep] three years [unc] | 102 |
|
| 3 | [adj] three years [unc] | 9 |
|
| 4 | [adj] [prep] three [unc] | 7 |
|
