| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | er there used [prep] be | 10 |
|
| 2 | er there used to [be] | 10 |
|
| 3 | er there used [prep] [be] | 10 |
|
| 4 | er there used [prep] [be] | 10 |
|
