| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] be [vb pp] to use | 7 |
|
| 2 | [vb mod] be [vb pp] to use | 7 |
|
| 3 | be [vb pp] to be use | 10 |
|
| 4 | be [vb pp] to [be] use | 10 |
|
| 5 | be [vb pp] to be use | 10 |
|
| 6 | be [vb pp] to [be] use | 10 |
|
