| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] [prep] how old | 9 |
|
| 2 | [noun] [prep] how old | 9 |
|
| 3 | [prep] how [art] old | 6 |
|
| 4 | [prep] how [art] old | 6 |
|
| 5 | [prep] how old [noun] | 5 |
|
| 6 | [prep] how old [pron] | 5 |
|
