| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [prep] [num] years [unc] | 293 |
|
| 2 | [noun sg] [prep] [num] years [unc] | 235 |
|
| 3 | minimum [prep] [num] [noun] [unc] | 26 |
|
| 4 | minimum [prep] [num] [noun pl] [unc] | 23 |
|
| 5 | minimum [prep] [adj] years [unc] | 11 |
|
| 6 | minimum [prep] [num] years [unc] | 11 |
|
| 7 | minimum [prep] [num] year [unc] | 11 |
|
| 8 | minimum [prep] [num] years [unc] | 11 |
|
