| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [verb] how old | 30 |
|
| 2 | [adv] [verb] how old | 30 |
|
| 3 | [adv] [vb infin] how old | 23 |
|
| 4 | [not/n't] [verb] how old | 21 |
|
| 5 | not [verb] how old | 19 |
|
| 6 | [adv] know how old | 15 |
|
| 7 | n't [verb] how old | 15 |
|
| 8 | [adv] know how old | 12 |
|
| 9 | [adv] [verb] how old | 9 |
|
