| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | only about [adj] | 577 |
|
| 2 | [adv] about thirty | 40 |
|
| 3 | only about thirty | 11 |
|
| 4 | only [adv] thirty | 11 |
|
| 5 | only [adv] thirty | 11 |
|
