| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | years [prep] [art] [noun] | 3090 |
|
| 2 | twenty years [prep] [noun] | 82 |
|
| 3 | twenty years [prep] [art] | 69 |
|
| 4 | twenty [prep] [art] [noun] | 66 |
|
| 5 | twenty years [art] [noun] | 14 |
|
