| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a [noun sg] at the [adj] door | 20 |
|
| 2 | a [noun sg] at the [adj] door | 19 |
|
| 3 | a [noun sg] at the front door | 10 |
|
| 4 | a [noun sg] at the front door | 10 |
|
| 5 | a knock at the [adj] door | 7 |
|
| 6 | a [noun sg] at the back door | 5 |
|
| 7 | a [noun sg] at the back door | 5 |
|
