| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [vb infin] what happened to | 45 |
|
| 2 | [adv] [vb infin] [pron] happened to | 45 |
|
| 3 | [adv] [vb infin] [Wh det] happened to | 45 |
|
| 4 | [adv] [vb infin] what happened to | 45 |
|
| 5 | [not/n't] [vb infin] [pron] happened to | 41 |
|
| 6 | not [vb infin] [pron] happened to | 40 |
|
| 7 | n't [vb infin] [pron] happened to | 34 |
|
| 8 | [adv] know [pron] happened to | 27 |
|
| 9 | [adv] care [pron] happened to | 7 |
|
| 10 | not [vb infin] [pron] happened to | 6 |
|
