| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [det] [noun pl] ago [prep] a [noun sg] | 18 |
|
| 2 | [det] years ago [prep] a [noun] | 17 |
|
| 3 | some [noun pl] ago [prep] a [noun] | 7 |
|
| 4 | many [noun pl] ago [prep] a [noun] | 6 |
|
| 5 | [det] [noun pl] ago by a [noun] | 5 |
|
| 6 | [det] [noun pl] ago [prep] a [noun prp] | 5 |
|
| 7 | several [noun pl] ago [prep] a [noun] | 5 |
|
| 8 | [det] months ago [prep] a [noun] | 5 |
|
