| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] years ' | 1401 |
|
| 2 | 20 [noun pl] ' | 66 |
|
| 3 | 20 [noun] ' | 66 |
|
| 4 | 20 years [unc] | 53 |
|
| 5 | 20 year ' | 53 |
|
