| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [vb pp] a [adj] [noun] ago | 47 |
|
| 2 | [be] [vb pp] a [adj] time [adv] | 26 |
|
| 3 | [be] [verb] a [adj] time ago | 17 |
|
| 4 | [be] [vb pp] [art] [adj] time ago | 17 |
|
