| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | in twenty year [unc] [noun sg] | 9 |
|
| 2 | in twenty years [unc] [noun] | 9 |
|
| 3 | in twenty year ['s] [noun] | 9 |
|
| 4 | in twenty year ' [noun] | 9 |
|
| 5 | in twenty year ' [noun] | 9 |
|
| 6 | in twenty year [unc] time | 8 |
|
| 7 | in twenty year [unc] time | 8 |
|
