| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] [subord] a [noun sg] ago | 65 |
|
| 2 | [adj] than a [noun sg] ago | 57 |
|
| 3 | [det] [subord] a [noun sg] ago | 51 |
|
| 4 | more [subord] a [noun sg] ago | 34 |
|
| 5 | more [subord] a [noun sg] ago | 34 |
|
| 6 | [adj] [subord] a year ago | 33 |
|
| 7 | [adj] [subord] a century ago | 13 |
|
| 8 | less [subord] a [noun sg] ago | 13 |
|
| 9 | less [subord] a [noun sg] ago | 13 |
|
| 10 | [adj] [subord] a decade ago | 12 |
|
| 11 | [adj -er] [subord] a [noun sg] ago | 9 |
|
| 12 | [adj] as a [noun sg] ago | 8 |
|
| 13 | high [subord] a [noun sg] ago | 6 |
|
| 14 | higher [subord] a [noun sg] ago | 5 |
|
| 15 | [adj] [subord] a [noun sg] ago | 5 |
|
