| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | twenty years ago the [noun] | 10 |
|
| 2 | twenty [noun pl] ago the [noun] | 10 |
|
| 3 | twenty [noun] ago the [noun] | 10 |
|
| 4 | twenty [noun] ago the [noun] | 10 |
|
| 5 | twenty year ago the [noun] | 10 |
|
| 6 | twenty [noun] ago the [noun sg] | 6 |
|
