| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [subord] a | 602 |
|
| 2 | [prep] [subord] a | 602 |
|
| 3 | about [subord] [art] | 166 |
|
| 4 | about [conj] a | 34 |
|
| 5 | about [subord] a | 27 |
|
