| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] [pron] happened [prep] [be] | 78 |
|
| 2 | unless [pron] [verb] [prep] [be] | 37 |
|
| 3 | unless [pron] happen [prep] [be] | 18 |
|
| 4 | unless [pron] [vb past] [prep] [be] | 8 |
|
