| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | how long do [pers pn] [verb] [det] | 6 |
|
| 2 | how long do [pers pn] [verb] [det] | 6 |
|
| 3 | [Wh adv] long do [pers pn] [verb] [det] | 6 |
|
| 4 | [adv] long do [pers pn] [verb] [det] | 6 |
|
