| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at a [adj] | 10976 |
|
| 2 | at a [adj -er] | 1375 |
|
| 3 | [prep] a earlier | 788 |
|
| 4 | [prep] a earlier | 788 |
|
| 5 | at a early | 624 |
|
| 6 | at [art] earlier | 165 |
|
| 7 | at a earlier | 141 |
|
