| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] used to [be] | 85 |
|
| 2 | [adv] used to be | 85 |
|
| 3 | never used to [be] | 23 |
|
| 4 | always used to [be] | 22 |
|
| 5 | all used to [be] | 7 |
|
| 6 | often used to [be] | 5 |
|
