| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | in [adj] years [unc] [noun] | 169 |
|
| 2 | [prep] twenty years [unc] [noun] | 19 |
|
| 3 | in twenty [noun pl] [unc] [noun] | 10 |
|
| 4 | in twenty [noun] [unc] [noun] | 10 |
|
| 5 | in twenty year [unc] [noun] | 9 |
|
