| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | used [to-vb] [det] | 539 |
|
| 2 | used [verb] [det] | 539 |
|
| 3 | used to have [adj] | 157 |
|
| 4 | [modal v] to have [det] | 103 |
|
| 5 | used have [det] | 75 |
|
