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