| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] used to | 2564 |
|
| 2 | [ex0] [modal v] to | 438 |
|
| 3 | [ex0] [vb mod] to | 438 |
|
| 4 | [ex0] used [prep] | 347 |
|
| 5 | [ex0] used to | 347 |
|
