| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] what have be | 34 |
|
| 2 | [vb past] what have [been] | 34 |
|
| 3 | [vb past] what have been | 34 |
|
| 4 | [vb past] what had [be] | 29 |
|
