| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] what [pron] used to [be] | 6 |
|
| 2 | [be] what it [modal v] to [be] | 6 |
|
| 3 | [be] what it used to [be] | 5 |
|
| 4 | [be] [Wh det] it used to [be] | 5 |
|
| 5 | [be] what it used [prep] [be] | 5 |
|
| 6 | [be] [pron] it used to [be] | 5 |
|
