| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | twenty years [verb] [art] | 14 |
|
| 2 | twenty years [verb] the | 9 |
|
| 3 | twenty years [to-vb] [art] | 5 |
|
| 4 | twenty years [verb] a | 5 |
|
