| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] used to | 2564 |
|
| 2 | [pron] [conj] to | 547 |
|
| 3 | [conj] used to | 143 |
|
| 4 | [pron] [conj] used | 21 |
|
