| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] a [adj] [noun sg] ago | 37 |
|
| 2 | [vb pp] a [adj] [noun] ago | 37 |
|
| 3 | [vb pp] a long [noun] ago | 34 |
|
| 4 | [vb pp] a [adj] time ago | 33 |
|
| 5 | [vb pp] a [adj] time ago | 33 |
|
| 6 | happened a [adj] [noun] ago | 5 |
|
| 7 | done a [adj] [noun] ago | 5 |
|
