| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | to be used [modal v] be | 5 |
|
| 2 | [modal v] be used [modal v] be | 5 |
|
| 3 | to be used [modal v] be | 5 |
|
| 4 | [vb mod] be used [modal v] be | 5 |
|
| 5 | [prep] be used [modal v] be | 5 |
|
| 6 | [prep] be used [modal v] be | 5 |
|
| 7 | be used [modal v] be [verb] | 6 |
|
| 8 | be used [modal v] be [vb pp] | 6 |
|
