| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be kept clean | 23 |
|
| 2 | be kept open | 21 |
|
| 3 | be kept alive | 19 |
|
| 4 | be kept separate | 18 |
|
| 5 | be kept secret | 17 |
|
| 6 | be kept busy | 13 |
|
| 7 | be kept confidential | 11 |
|
| 8 | be kept clear | 10 |
|
| 9 | be kept low | 9 |
|
| 10 | be kept distinct | 8 |
|
| 11 | be kept free | 8 |
|
| 12 | be kept warm | 7 |
|
| 13 | be kept dry | 7 |
|
| 14 | be kept safe | 6 |
|
| 15 | be kept moist | 6 |
|
| 16 | be kept short | 6 |
|
