| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] know [Wh adv] long he | 13 |
|
| 2 | not know [Wh adv] long he | 13 |
|
| 3 | [not/n't] know [Wh adv] long he | 13 |
|
| 4 | n't know [Wh adv] long he | 7 |
|
| 5 | not know [Wh adv] long he | 6 |
|
| 6 | know [Wh adv] long he [verb] | 9 |
|
| 7 | know [Wh adv] long he [vb past] | 7 |
|
| 8 | know [Wh adv] long he have | 5 |
|
