| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [vb pp] clean | 41 |
|
| 2 | be keep clean | 23 |
|
| 3 | be kept clean | 23 |
|
| 4 | be wipe clean | 5 |
|
| 5 | be wiped clean | 5 |
|
