| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] remains to be | 16 |
|
| 2 | [Wh det] remains [prep] be | 16 |
|
| 3 | [Wh det] remains to be | 16 |
|
| 4 | what remains [prep] be | 12 |
|
