| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | twenty years ' [noun] | 38 |
|
| 2 | twenty years ' [noun sg] | 37 |
|
| 3 | [adj] years ' worth | 28 |
|
| 4 | [num] years ' worth | 28 |
|
| 5 | twenty [noun pl] ' worth | 7 |
|
| 6 | twenty [noun] ' worth | 7 |
|
| 7 | twenty year ' worth | 5 |
|
| 8 | twenty years ['s] worth | 5 |
|
| 9 | twenty years ' worth | 5 |
|
| 10 | twenty years ' worth | 5 |
|
| 11 | twenty years [unc] worth | 5 |
|
| 12 | twenty years ' worth | 5 |
|
