| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at [det] than [art] | 30 |
|
| 2 | at [det] than [art] | 30 |
|
| 3 | at less than [art] | 20 |
|
| 4 | at [det] than the | 15 |
|
| 5 | at [det] than a | 15 |
|
| 6 | at [det] than a | 15 |
|
| 7 | at [det] than the | 15 |
|
| 8 | at more than [art] | 7 |
|
