| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | that [verb] occurred | 117 |
|
| 2 | [that] have occurred | 117 |
|
| 3 | [that] [vb base] occurred | 52 |
|
| 4 | [that] have occurred | 52 |
|
| 5 | [that] [vb -s] occurred | 37 |
|
| 6 | [that] has occurred | 36 |
|
| 7 | [that] [vb past] occurred | 28 |
|
| 8 | [that] had occurred | 28 |
|
