| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] what happened to [pers pn] | 24 |
|
| 2 | [adv prt] what [verb] to [pers pn] | 10 |
|
| 3 | [adv prt] what happened to [pron] | 9 |
|
| 4 | [adv prt] what [vb past] to [pers pn] | 8 |
|
| 5 | [adv prt] what happened to [pers pn] | 7 |
|
| 6 | [adv prt] [pron] happened to [pers pn] | 7 |
|
| 7 | [adv prt] what happen to [pers pn] | 7 |
|
| 8 | [adv prt] what happened [prep] [pers pn] | 7 |
|
| 9 | [adv prt] what happened [prep] [pers pn] | 7 |
|
