| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] than a century | 104 |
|
| 2 | [det] than a century | 104 |
|
| 3 | more than a century | 96 |
|
| 4 | more than a century | 96 |
|
| 5 | less than a century | 8 |
|
| 6 | less than a century | 8 |
|
