| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] used to be | 1772 |
|
| 2 | [pron] to be [adj] | 1530 |
|
| 3 | used to be [adj] | 263 |
|
| 4 | [pron] used to [adj] | 5 |
|
