| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [prep] [adj] years [unc] | 322 |
|
| 2 | [noun] [prep] [num] years [unc] | 293 |
|
| 3 | [noun] [prep] two [noun] [unc] | 133 |
|
| 4 | [noun] [prep] two [noun pl] [unc] | 126 |
|
| 5 | [noun] [prep] two year [unc] | 65 |
|
| 6 | [noun] [prep] two years [unc] | 62 |
|
