| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] than [art] national average | 29 |
|
| 2 | [adj -er] than [art] national average | 23 |
|
| 3 | high than [art] national average | 12 |
|
| 4 | higher than [art] national average | 12 |
|
| 5 | [adv] than [art] national average | 9 |
|
| 6 | [adv] than [art] national average | 9 |
|
| 7 | low than [art] national average | 8 |
|
| 8 | lower than [art] national average | 8 |
|
| 9 | [det] than [art] national average | 5 |
|
| 10 | than [art] national average [prep] | 5 |
|
| 11 | than [art] national average [prep] | 5 |
|
