| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had never [verb] [prep] | 463 |
|
| 2 | had [adv] happen [prep] | 62 |
|
| 3 | had [adv] happen [prep] | 52 |
|
| 4 | [verb] never happen [prep] | 22 |
|
| 5 | have never happen [prep] | 21 |
|
| 6 | had never happen [prep] | 12 |
|
| 7 | [vb past] never happen [prep] | 12 |
|
| 8 | had never happen [prep] | 12 |
|
