| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] at [art] front [noun sg] | 21 |
|
| 2 | [vb past] at the front [noun sg] | 21 |
|
| 3 | [vb past] at [art] front door | 18 |
|
| 4 | knocked at [art] front [noun sg] | 6 |
|
