| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what it [modal v] to | 36 |
|
| 2 | what it [vb mod] to | 36 |
|
| 3 | what it used to | 31 |
|
| 4 | what it used to | 31 |
|
| 5 | what it ought to | 5 |
|
| 6 | what it ought to | 5 |
|
