| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had happen [prep] [noun prp] | 113 |
|
| 2 | [adv] happen [prep] [noun prp] | 73 |
|
| 3 | had [adv] happen [prep] | 52 |
|
| 4 | had [adv] [prep] [noun prp] | 11 |
|
