| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | can only [be] [adv] understood | 7 |
|
| 2 | [vb mod] only [be] [adv] understood | 7 |
|
| 3 | [modal v] only [be] [adv] understood | 7 |
|
| 4 | [modal v] only be [adv] understood | 7 |
|
| 5 | can only [be] [adv] understood | 7 |
|
