| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | on what [modal v] to be | 7 |
|
| 2 | on what [vb mod] to [be] | 7 |
|
| 3 | on what [modal v] to [be] | 7 |
|
| 4 | on what [modal v] to be | 7 |
|
| 5 | on what used to [be] | 6 |
|
| 6 | on what used to [be] | 6 |
|
