| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [prep] [num] years [unc] | 293 |
|
| 2 | [noun] for [num] [noun] [unc] | 63 |
|
| 3 | [noun] for [num] [noun pl] [unc] | 46 |
|
| 4 | [noun] for [num] year [unc] | 20 |
|
| 5 | [noun] for [adj] years [unc] | 16 |
|
