| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be kept [adj] | 723 |
|
| 2 | be kept [adj] | 707 |
|
| 3 | be [verb] separate | 85 |
|
| 4 | be [vb pp] separate | 60 |
|
| 5 | [be] kept separate | 43 |
|
| 6 | be kept separate | 43 |
|
| 7 | be keep separate | 43 |
|
