| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] years ago in | 172 |
|
| 2 | twenty years ago [prep] | 12 |
|
| 3 | twenty years ago [prep] | 12 |
|
| 4 | twenty years [adv] in | 10 |
|
| 5 | twenty [noun pl] ago in | 5 |
|
| 6 | twenty [noun] ago in | 5 |
|
| 7 | twenty years ago in | 5 |
|
| 8 | twenty year ago in | 5 |
|
