| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | this [modal v] only be done by | 13 |
|
| 2 | this [modal v] only be done by | 13 |
|
| 3 | this [vb mod] only be done by | 13 |
|
| 4 | this [modal v] only be done by | 13 |
|
| 5 | this can only be done by | 10 |
|
| 6 | this can only be done by | 10 |
|
