| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be on [det] occasion | 16 |
|
| 2 | [be] on [det] occasion | 16 |
|
| 3 | [be] on this occasion | 13 |
|
| 4 | was on [det] occasion | 11 |
|
| 5 | [was/were] on [det] occasion | 11 |
|
