| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | than a [noun] [prep] [art] | 604 |
|
| 2 | [conj] a century [prep] [art] | 9 |
|
| 3 | than a century [prep] [art] | 8 |
|
| 4 | than [art] century [prep] [art] | 8 |
|
| 5 | [subord] a century [prep] [art] | 8 |
|
