| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | the occasion when [pers pn] [verb] [verb] | 6 |
|
| 2 | [art] occasion when [pers pn] [vb past] [verb] | 6 |
|
| 3 | [art] occasion when [pers pn] [verb] [vb pp] | 5 |
|
| 4 | [art] occasion when [pers pn] have [verb] | 5 |
|
