| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] [modal v] to be on | 6 |
|
| 2 | [conj] [vb mod] to be on | 6 |
|
| 3 | [conj] used to be on | 5 |
|
| 4 | [conj] used to be on | 5 |
|
