| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [verb] on many occasions | 15 |
|
| 2 | [be] [verb] on many occasions | 15 |
|
| 3 | [be] [vb pp] on many occasions | 13 |
|
| 4 | been [verb] on many occasions | 10 |
|
| 5 | [been] [verb] on many occasions | 10 |
|
