| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] twenty year ['s] [noun sg] | 19 |
|
| 2 | [prep] twenty years ['s] [noun] | 19 |
|
| 3 | [prep] twenty year ' [noun] | 19 |
|
| 4 | [prep] twenty year ['s] [noun] | 19 |
|
| 5 | in twenty year ['s] [noun] | 9 |
|
| 6 | in twenty year ['s] [noun] | 9 |
|
| 7 | [prep] twenty year ['s] time | 8 |
|
| 8 | [prep] twenty year ['s] time | 8 |
|
| 9 | of twenty year ['s] [noun] | 5 |
|
| 10 | of twenty year ['s] [noun] | 5 |
|
