| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] only [be] understood | 56 |
|
| 2 | [modal v] [be] understood in | 45 |
|
| 3 | [modal v] only [be] in | 36 |
|
| 4 | only [be] understood in | 25 |
|
