| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] used to [be] a | 289 |
|
| 2 | what used to [be] [art] | 41 |
|
| 3 | what used to [be] [art] | 41 |
|
| 4 | [Wh det] used to [be] a | 20 |
|
| 5 | what [vb mod] to [be] a | 16 |
|
| 6 | what [modal v] to [be] a | 16 |
|
| 7 | what used to [be] a | 13 |
|
| 8 | what used to [be] a | 10 |
|
| 9 | what used [prep] [be] a | 10 |
|
| 10 | what used to [be] a | 10 |
|
