| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | years ago [verb] [been] | 17 |
|
| 2 | years ago have [been] | 17 |
|
| 3 | years [adv] have [been] | 8 |
|
| 4 | years [adv] have [been] | 8 |
|
| 5 | [noun pl] ago have [been] | 7 |
|
| 6 | years ago have [be] | 7 |
|
| 7 | years ago [vb base] [been] | 7 |
|
| 8 | year ago have [been] | 7 |
|
| 9 | [noun] ago have [been] | 7 |
|
| 10 | years ago have [been] | 7 |
|
