| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] [num] year ['s] [noun] | 58 |
|
| 2 | twenty [num] [noun] ['s] [noun] | 18 |
|
| 3 | twenty [adj] year ['s] [noun] | 7 |
|
| 4 | twenty [num] year [unc] [noun] | 6 |
|
