| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] a [adj] [noun] ago | 107 |
|
| 2 | [vb pp] a [adj] [noun] ago | 37 |
|
| 3 | happen a [adj] [noun] ago | 13 |
|
| 4 | happened a [adj] [noun] ago | 9 |
|
| 5 | happened a [adj] [noun] [adv] | 6 |
|
| 6 | happened [art] [adj] [noun] ago | 5 |
|
| 7 | happened a [adj] [noun] ago | 5 |
|
| 8 | happened [art] [adj] [noun] ago | 5 |
|
