| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be covered by the | 67 |
|
| 2 | are covered by the | 41 |
|
| 3 | is covered by the | 37 |
|
| 4 | was covered by the | 13 |
|
| 5 | been covered by the | 12 |
|
| 6 | were covered by the | 5 |
|
