| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | as [pron] used to [be] | 94 |
|
| 2 | [conj] [ex0] used to [be] | 69 |
|
| 3 | as [ex0] [modal v] to [be] | 8 |
|
| 4 | as [ex0] used [prep] [be] | 6 |
|
