| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [det] more than a [noun] ago | 11 |
|
| 2 | [det] more than a century [adv] | 6 |
|
| 3 | [det] [det] than a century ago | 5 |
|
| 4 | [adj] more than a century ago | 5 |
|
| 5 | [det] more [conj] a century ago | 5 |
|
| 6 | [det] more than a century ago | 5 |
|
| 7 | [det] more [subord] a century ago | 5 |
|
| 8 | [det] [adj] than a century ago | 5 |
|
| 9 | [det] more than a century ago | 5 |
|
| 10 | [det] more than [art] century ago | 5 |
|
