| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] a long [noun] ago | 34 |
|
| 2 | [vb pp] [adv] a long [noun] | 33 |
|
| 3 | [vb pp] [adv] a [noun] ago | 28 |
|
| 4 | [adv] a long [noun] ago | 22 |
|
