| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [vb past] a [adj] [noun sg] ago | 20 |
|
| 2 | [noun] [vb past] a [adj] time ago | 18 |
|
| 3 | [noun] [vb past] a long [noun] ago | 18 |
|
| 4 | [noun] [vb past] a [adj] time ago | 18 |
|
| 5 | [noun sg] [vb past] a [adj] [noun] ago | 9 |
|
| 6 | [noun prp] [vb past] a [adj] [noun] ago | 7 |
|
