| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] years [unc] [noun sg] | 1213 |
|
| 2 | 20 [noun] [unc] [noun sg] | 61 |
|
| 3 | 20 [noun pl] [unc] [noun sg] | 56 |
|
| 4 | 20 years [unc] [noun] | 45 |
|
| 5 | 20 year [unc] [noun sg] | 45 |
|
