| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] had happen in the [noun] | 19 |
|
| 2 | [Wh det] had happen in the [noun] | 18 |
|
| 3 | what had happen in the [noun] | 16 |
|
| 4 | what had happen in the [noun] | 16 |
|
| 5 | [conj] had happen in the [noun] | 8 |
|
| 6 | had happen in the [adj] [noun] | 10 |
|
| 7 | had happen in the [adj] [noun] | 5 |
|
| 8 | had happen in the [noun] [prep] | 7 |
|
| 9 | had happen in the [noun] [prep] | 7 |
|
