| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what can only [be] [verb] | 42 |
|
| 2 | what can [adv] [be] call | 15 |
|
| 3 | [pron] can only [be] call | 10 |
|
| 4 | what [vb mod] only [be] call | 10 |
|
| 5 | what [modal v] only [be] call | 10 |
|
| 6 | what can only [be] call | 9 |
|
| 7 | what can only [be] call | 9 |
|
