| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they used to be [verb] | 26 |
|
| 2 | they used to be [verb] | 26 |
|
| 3 | they used to be [verb] | 26 |
|
| 4 | they used to be [vb pp] | 21 |
|
