| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] used to [be] | 1772 |
|
| 2 | [adv] [pron] used to | 146 |
|
| 3 | [adv] used to [be] | 85 |
|
| 4 | [adv] [pron] to [be] | 57 |
|
