| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [vb pp] a [adj] [noun] ago | 30 |
|
| 2 | have [vb pp] a [adj] [noun] ago | 29 |
|
| 3 | [vb past] [vb pp] a [adj] [noun] ago | 20 |
|
| 4 | [verb] [vb pp] a [adj] [noun] ago | 15 |
|
| 5 | had [vb pp] a [adj] [noun] ago | 15 |
|
| 6 | [verb] [vb pp] a [adj] [noun pl] ago | 15 |
|
| 7 | [verb] [vb pp] a [adj] [noun sg] ago | 15 |
|
| 8 | [verb] [vb pp] a long [noun] ago | 14 |
|
| 9 | [verb] [vb pp] a [adj] time ago | 14 |
|
| 10 | [verb] [vb pp] a [adj] time ago | 14 |
|
| 11 | [verb] [vb pp] a long [noun] ago | 14 |
|
| 12 | [verb] [vb pp] a few [noun] ago | 12 |
|
| 13 | [verb] [vb pp] a [det] [noun] ago | 12 |
|
| 14 | [verb] [vb pp] a few [noun] ago | 12 |
|
| 15 | [vb infin] [vb pp] a [adj] [noun] ago | 9 |
|
| 16 | have [vb pp] a [adj] [noun] ago | 9 |
|
| 17 | [verb] happened a [adj] [noun] ago | 8 |
|
| 18 | [verb] [vb pp] a [adj] years ago | 8 |
|
| 19 | [verb] [vb pp] a [adj] year ago | 8 |
|
