| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] years ' | 1401 |
|
| 2 | [num] years ' | 1274 |
|
| 3 | twenty [noun] ' | 57 |
|
| 4 | twenty [noun pl] ' | 57 |
|
| 5 | twenty years [unc] | 43 |
|
| 6 | twenty year ' | 41 |
|
| 7 | twenty years ' | 41 |
|
