| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] what happened | 644 |
|
| 2 | [prep] what happened | 513 |
|
| 3 | [prep] what happened | 513 |
|
| 4 | [adv] what happened | 298 |
|
| 5 | [adv] what happened | 244 |
|
| 6 | [vb infin] what happened | 192 |
|
| 7 | know what happened | 183 |
|
| 8 | of what happened | 168 |
|
| 9 | of what happened | 168 |
|
| 10 | [be] what happened | 165 |
|
| 11 | be what happened | 165 |
|
| 12 | [vb base] what happened | 165 |
|
| 13 | [conj] what happened | 159 |
|
| 14 | [is] what happened | 138 |
|
| 15 | [coord] what happened | 125 |
|
| 16 | [to-vb] what happened | 121 |
|
| 17 | about what happened | 104 |
|
| 18 | about what happened | 104 |
|
| 19 | [pron] what happened | 103 |
|
| 20 | [pers pn] what happened | 96 |
|
| 21 | know what happened | 92 |
|
| 22 | [noun] what happened | 81 |
|
| 23 | 's what happened | 76 |
|
| 24 | and what happened | 76 |
|
| 25 | exactly what happened | 76 |
|
| 26 | see what happened | 76 |
|
| 27 | exactly what happened | 76 |
|
| 28 | and what happened | 76 |
|
| 29 | [vb past] what happened | 75 |
|
| 30 | [noun sg] what happened | 63 |
|
