| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] it had happen | 53 |
|
| 2 | [subord] it had happen | 31 |
|
| 3 | [adv] it had happen | 23 |
|
| 4 | [Wh adv] it had happen | 19 |
|
| 5 | if it had happen | 16 |
|
| 6 | how it had happen | 16 |
|
| 7 | if it had happen | 16 |
|
| 8 | how it had happen | 16 |
|
| 9 | [that] it had happen | 14 |
|
| 10 | that it had happen | 14 |
|
| 11 | that it had happen | 14 |
|
| 12 | [verb] it had happen | 10 |
|
| 13 | [coord] it had happen | 8 |
|
| 14 | [noun sg] it had happen | 8 |
|
| 15 | [noun] it had happen | 8 |
|
| 16 | but it had happen | 7 |
|
| 17 | but it had happen | 7 |
|
| 18 | when it had happen | 5 |
|
| 19 | [vb past] it had happen | 5 |
|
| 20 | [prep] it had happen | 5 |
|
| 21 | [prep] it had happen | 5 |
|
| 22 | when it had happen | 5 |
|
| 23 | it had [adv] happen | 83 |
|
| 24 | it had [adv] happen | 66 |
|
| 25 | it had never happen | 20 |
|
| 26 | it had never happen | 20 |
|
| 27 | it had all happen | 19 |
|
| 28 | it had all happen | 19 |
|
| 29 | it had [not/n't] happen | 17 |
|
| 30 | it had not happen | 17 |
|
