| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] used to have [verb] to | 10 |
|
| 2 | [pron] used to have [to-vb] to | 10 |
|
| 3 | [pron] used to have to go to | 8 |
|
| 4 | [pron] used to have go to | 8 |
|
