| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] used to [be] | 1772 |
|
| 2 | [pron] to [be] [adv] | 873 |
|
| 3 | used to [be] [adv] | 225 |
|
| 4 | [pron] used to [adv] | 165 |
|
