| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [art] knock at the door | 55 |
|
| 2 | a knock at the door | 49 |
|
| 3 | a knock at the door | 49 |
|
| 4 | the knock at the door | 5 |
|
| 5 | the knock at the door | 5 |
|
