| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [prep] what [adv] [verb] | 135 |
|
| 2 | [noun] [prep] what [adv] [vb past] | 66 |
|
| 3 | [noun] [prep] what [adv] happen | 37 |
|
| 4 | [noun] [prep] [Wh det] [adv] happened | 17 |
|
| 5 | [noun] [prep] what [adv] happened | 17 |
|
| 6 | [noun] [prep] [pron] [adv] happened | 17 |
|
| 7 | [noun] [prep] what [adv] happened | 17 |
|
