| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] be [vb pp] clear | 76 |
|
| 2 | [modal v] be [vb pp] clear | 76 |
|
| 3 | [modal v] be made clear | 63 |
|
| 4 | should be [vb pp] clear | 38 |
|
| 5 | should be [vb pp] clear | 38 |
|
| 6 | must be [vb pp] clear | 21 |
|
| 7 | must be [vb pp] clear | 21 |
|
| 8 | [modal v] be kept clear | 7 |
|
| 9 | will be [vb pp] clear | 7 |
|
| 10 | will be [vb pp] clear | 7 |
|
