| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what [pron] used to [be] | 59 |
|
| 2 | what it [vb mod] to [be] | 35 |
|
| 3 | what it [modal v] to [be] | 35 |
|
| 4 | [pron] it used to [be] | 34 |
|
| 5 | what it used [prep] [be] | 30 |
|
| 6 | what it used to [be] | 30 |
|
| 7 | what it used [prep] [be] | 30 |
|
| 8 | what it used to [be] | 30 |
|
