| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [Wh det] used to be | 86 |
|
| 2 | on [Wh det] [vb mod] to be | 7 |
|
| 3 | on [pron] used to be | 7 |
|
| 4 | on [Wh det] [modal v] to be | 7 |
|
| 5 | on [Wh det] used to be | 6 |
|
| 6 | on [Wh det] used to [be] | 6 |
|
| 7 | on [Wh det] used to be | 6 |
|
| 8 | on [Wh det] used [prep] be | 6 |
|
| 9 | on [Wh det] used to [be] | 6 |
|
