| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had happen | 1817 |
|
| 2 | [vb past] happened | 1789 |
|
| 3 | did happen | 112 |
|
| 4 | [vb past] happen | 112 |
|
| 5 | [vb past] to happen | 91 |
|
| 6 | seemed happen | 21 |
|
| 7 | began happen | 14 |
|
| 8 | started happen | 12 |
|
| 9 | [vb past] happening | 10 |
|
| 10 | [vb past] happened | 7 |
|
| 11 | 'd happen | 6 |
|
| 12 | wanted happen | 5 |
|
