| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | for [det] a [noun] | 607 |
|
| 2 | [prep] [det] a century | 76 |
|
| 3 | for [det] [art] century | 41 |
|
| 4 | for [det] [art] century | 41 |
|
| 5 | for [adj] a century | 40 |
|
| 6 | for [det] a century | 40 |
|
