| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] [pers pn] have been doing for | 10 |
|
| 2 | what [pers pn] have been doing for | 10 |
|
| 3 | what [pers pn] have been doing for | 10 |
|
| 4 | [pron] [pers pn] 've been doing for | 5 |
|
