| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] three years [unc] [adj] | 5 |
|
| 2 | [prep] three years [unc] [adj] | 5 |
|
| 3 | three years [unc] [adj] [noun] | 14 |
|
| 4 | three years [unc] [adj] [noun sg] | 12 |
|
