| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they can only be [vb pp] | 45 |
|
| 2 | they can only be [vb pp] | 45 |
|
| 3 | they can only be [vb pp] | 42 |
|
| 4 | they can only be used | 5 |
|
