| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] used to [be] | 94 |
|
| 2 | [adv] used to [be] | 85 |
|
| 3 | all [modal v] to [be] | 8 |
|
| 4 | all used to [be] | 7 |
|
| 5 | all used [prep] [be] | 7 |
|
