| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | that [vb -s] happen in | 17 |
|
| 2 | that [vb -s] happen in | 17 |
|
| 3 | that [vb -s] happened in | 16 |
|
| 4 | that has happen in | 12 |
|
