| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | to be kept [adj] | 92 |
|
| 2 | to be kept clean | 11 |
|
| 3 | to be kept alive | 8 |
|
| 4 | to be kept secret | 7 |
|
| 5 | to be kept open | 6 |
|
| 6 | to be kept busy | 5 |
|
| 7 | to be kept separate | 5 |
|
| 8 | to be kept distinct | 5 |
|
