| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | twenty [noun pl] [adv] a | 8 |
|
| 2 | twenty year [adv] a | 6 |
|
| 3 | twenty years [adv] a | 6 |
|
| 4 | twenty [noun] ago a | 5 |
|
