| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [vb pp] clean [conj] | 10 |
|
| 2 | [be] kept clean [conj] | 9 |
|
| 3 | [be] [vb pp] clean and | 8 |
|
| 4 | [be] [vb pp] clean and | 8 |
|
| 5 | [be] [vb pp] clean [coord] | 8 |
|
