| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] have happened | 2669 |
|
| 2 | [Wh det] have happened | 2034 |
|
| 3 | what have happened | 1978 |
|
| 4 | what have happened | 1978 |
|
| 5 | [modal v] have happened | 447 |
|
| 6 | [vb mod] have happened | 447 |
|
| 7 | [adj] have happened | 412 |
|
| 8 | [pers pn] have happened | 347 |
|
| 9 | [conj] have happened | 331 |
|
| 10 | it have happened | 321 |
|
| 11 | it have happened | 321 |
|
| 12 | [det] have happened | 299 |
|
| 13 | [indef pn] have happened | 284 |
|
| 14 | that have happened | 271 |
|
| 15 | that have happened | 271 |
|
| 16 | [that] have happened | 271 |
|
| 17 | [noun] have happened | 223 |
|
| 18 | [adv] have happened | 214 |
|
| 19 | nothing have happened | 165 |
|
| 20 | nothing have happened | 165 |
|
| 21 | this have happened | 156 |
|
| 22 | this have happened | 156 |
|
| 23 | would have happened | 151 |
|
| 24 | would have happened | 151 |
|
| 25 | [noun sg] have happened | 143 |
|
| 26 | [adv] have happened | 115 |
|
| 27 | [adj] have happened | 107 |
|
| 28 | could have happened | 107 |
|
| 29 | could have happened | 107 |
|
| 30 | [not/n't] have happened | 99 |
|
